Some of my favourite quotes:
Lucille: Everyone's laughing, and riding, and cornholing except Buster.
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[Michael is asked to take over the family business]
Michael: I'm moving to Phoenix. I got a job.
[There is an awkward silence]
Michael: Something you apply for and they pay you to... Never mind, I don't want to ruin the surprise.
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[after the publicist has just told the family that Michael is the most likeable member of the family]
Publicist: There are very few intelligent, attractive and straight men in this town.
Tobias Funke: Well, that leaves me out.
[Silence, everyone stares]
Tobias Funke: She did say single, right? I-I-I thought she said single.
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Buster: We're excavating a pterodactyl.
[plainly shows a human skull; Buster accidentally hits and breaks it with a hammer]
Buster: That was 90% gravity.
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Lucille Bluth: Did that Mexican girlfriend of yours kick you out.
Gob: No, she didn't, and plus she's not Mexican, she's Colombian or something.
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Buster: No mother, I can blow myself. You've interfered for the last time.
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[Gob is leaving his and Marta's house]
Marta: Te Quiero.
Gob: English, please.
Marta: I love you.
Gob: Great, now I'm late.
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Gob: My gut is telling me no... but my gut is also very hungry.
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George Sr.: You should have seen the face he made when - well, he's my twin brother, I'll show you!
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[on the phone]
George Michael: Hello, Bluth Company.
George Sr.: Talk me off, honey. Talk me off.
George Michael: Talk you off what, PopPop?
George Sr.: Oh, George Michael! I thought you were - when's that voice gonna drop? Put Kitty on the phone.
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[answering the phone]
George Michael: [very quickly] Bluth-Company-George-Michael-speaking-not-Kitty.
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[Buster has shown up at his father's hearing with a mariachi band]
Lucille: Oh, for God's sake. He's out of the house for two days and he joins a gang.
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Micheal: There's more to life than strippers and booze and buckets of blood. Why do you guys have buckets of blood?
Gob: It's not real blood. It's corn syrup and red dye... juice.
Buster: There's unlimited juice? This party is gonna be off the hook!
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Michael Bluth: Why are you squeezing me with your body?
Lucille Bluth: It's a hug, Michael. I'm hugging you.
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[flashback to George Sr. driving a younger Michael, Gob, and Buster]
George Sr.: We're out of milk. I could have got it earlier if someone would have left a note.
[suddenly he runs down J. Walter Weatherman and his fake arm comes off]
George Sr.: [poorly acting] Why? If someone had left a note, this innocent man would still have his arm! Why?
[the kids scream as Weatherman comes up to them]
J. Walter Weatherman: And that's why you always leave a note.
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Gob: Gilligan killed the Skipper - I mean, the stripper!
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Michael: We're gonna go on a fishing trip.
George Michael: Why? What did I do?
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Maeby: [as Surely] No more BS! No more BS!
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Gob: Michael, you have a chance to save this family. Please, do the right thing here - string this blind girl along so that Dad doesn't have to pay his debt to society.
Barry: The solution to all our problems is staring you in the face and it can't even see you!
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Michael: So this is the Aztec Tomb trick.
Gob: Illusion, Michael. A trick is something a whore does for money...
[sees children watching his magic]
Gob: ... or candy!
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Michael: [discussing evidence that links George Sr. to Saddam Hussain] If this information was so damaging, why didn't you just shred it?
George Sr.: Well, Saddam owed us money.
Michael: And you didn't realize that he wouldn't pay?
George Sr.: You mom had a good feeling about him.
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Lindsay Funke: Barry, did you talk to a doctor?
Barry Zuckerkorn: I did. I have poison oak. Do you believe it? How the hell did I get that?
[Cut to a shot of a rest area]
Lucille Bluth: She was talking about George.
Barry Zuckerkorn: Oh, he's the same. Look, I guess we should decide on who's going to speak for the family. I would, but I have Laker tickets.
[Cut to a shot of the rest area]
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Lindsay Funke: I'm saying every time something starts to go well for you, you blow it.
Tobias Fünke: Nothing has ever gone well for me, and you know that.
Lindsay Funke: That's my point, you...
[sees Mabey]
Lindsay Funke: ... handsome cowboy, you.
Tobias Fünke: Oh, great. And now you're mocking me. You selfish coun-
[Notices Mabey]
Tobias Fünke: ... try music loving lady. Hello, Maeby.
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Buster: [about Lucille] It's like she gets off on being witholding.
Michael: Whoa. Buster.
Gob: Look who's got something to say.
Buster: [impersonating Lucille] I'm Mom and I want to shoot down everything you say so I feel good about myself.
[everyone laughs]
Gob: Look who's ragging on the old lady.
Buster: Cause I'm an uptight
[long bleep]
Buster: Buster
[Long bleep]
Buster: ... you old horny slut!
Michael: [pause] Well, no one's going to top that.
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Lucille: Oh, hello, Buster. Here's a candy bar. No, I'm withholding it. Look at me, "getting off. "
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Lucille: Look what they've done, Michael! Look what the homosexuals have done to me!
Michael: You can't just comb that out and reset it?
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[Barry has a hooker with him during "Take Your Daughter to Work Day"]
Michael: I didn't know you had a daughter.
Barry Zuckerkorn: I don't.
Charlotte: I thought you wanted me to call you Daddy.
Barry Zuckerkorn: Why don't you wait for Daddy in the car?