[Marty places headphones over his father's ears and wakes him up by playing Van Halen music at full blast. George wakes up screaming - Marty pauses the music. George looks up to see Marty, who is unrecognizable because he is wearing a radiation suit]
George McFly: Who are you?
Marty McFly: [after giving him another earful of loud rock music] Silence Earthling! My name is Darth Vader. I am an extraterrestrial from the planet Vulcan!
[makes Live Long and Prosper sign with his hand]

Young Biff: Why don't you make like a tree and get out of here?
Old Biff: It's leave, you idiot! "Make like a tree, and leave." You sound like a damn fool when you say it wrong.
Young Biff: All right then, leave! And take your book with you!

Old Biff: Hello? Hello? Anybody home? Huh? Think, McFly! Think! Your old man, Mr. Loser?
Marty McFly: What?
Old Biff: That's right. Loser with a capital "L".
Marty McFly: Look, I happen to know that George McFly is not a loser...
Old Biff: [interrupts] I'm not talkin' about George McFly. I'm talkin' about his kid! Your old man, Marty McFly Sr.? The man who took his life and flushed it completely down the toilet.
Marty McFly: I did? I- I mean he did?

[last lines]
Marty McFly: Doc, we better back up. We don't have enough road to get up to 88.
Dr. Emmett Brown: Roads? Where we're going we don't need roads.

[to Uncle Joey as a baby, playing in his playpen] So you're my Uncle Joey. Better get used to these bars, kid.

Marty McFly

[Biff is waxing George's car, it's a silver BMW]
George McFly: Uh... now Biff, I want make sure that we get two coats of wax this time. Not just one.
Biff Tannen: Just finishing up the second coat now.
George McFly: Now Biff, don't con me!
Biff Tannen: I-I'm-I'm sorry, Mr. McFly. I-I meant I was just starting on the second coat.
George McFly: Ahh... Biff. What a character. Always trying to get away with something. I've had to stay on top of Biff ever since High School. Although if it wasn't for him...
Lorraine Baines: We never would have fallen in love.
George McFly: That's right.

So you're my great-grandfather. The first McFly born in America. And you peed on me.

Marty McFly

Officer Reese: Hilldale, nothing but a breeding ground for tranks, lobos and zipheads.
Officer Foley: Yeah, they outta tear this whole place down.
Officer Reese: You got a little tranked, but I think you can walk.
Officer Foley: Ma'am, you should reprogram, it's dangerous to enter without lights on.

George McFly: Do you really think I oughta swear?
Marty McFly: Yes, definitely. Goddamn it George, swear.

Buford "Mad Dog" Tannen: What's your name, dude?
Marty McFly: Uh, Mar-, uh... Eastwood. Clint Eastwood.
Buford "Mad Dog" Tannen: What kind of stupid name is that?

Old Lorraine: Aren't you and Jennifer getting along?
Middle-Aged Marty: Oh, yeah, Mom. We're like a couple o' teenagers, ya know?

Old Biff: Tough break, kid. Must be rough bein' named after a complete butthead.
Marty McFly: What's that supposed to mean?

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