Marty McFly: Calvin? Why do you keep calling me Calvin?
Lorraine Baines: Well, that is your name, isn't it? Calvin Klein? It's written all over your underwear.
Dr. Emmett Brown: Don't worry. As long as you hit that wire with the connecting hook at precisely 88mph the instant the lightning strikes the tower... Everything will be fine.
George McFly: Lou. Give me a milk... Chocolate.
Marty McFly: Wait a minute, Doc, are you trying to tell me that my mother has got the hots for me?
Dr. Emmett Brown: Precisely.
Marty McFly: Whoa, this is heavy.
Dr. Emmett Brown: There's that word again; "heavy." Why are things so heavy in the future? Is there a problem with the earth's gravitational pull?
Dr. Emmett Brown: Tell me, "Future Boy", who's President in the United States in 1985?
Marty McFly: Ronald Reagan.
Dr. Emmett Brown: Ronald Reagan? The actor? Then who's Vice President? Jerry Lewis? I suppose Jane Wyman is the First Lady!
Marty McFly: Whoa! Wait! Doc!
Dr. Emmett Brown: And Jack Benny is Secretary of the Treasury.
George McFly: Hey, you! Get your damn hands off her!
Dr. Emmett Brown: Oh, my God, they found me, I don't know how, but they found me. Run for it Marty!
Marty McFly: Who? Who?
Dr. Emmett Brown: Who do you think?! The Libyans!
Marty McFly: Holy shit!
George McFly: Do you really think I oughta swear?
Marty McFly: Yes, definitely. Goddamn it George, swear.
Marty McFly: Wait a minute, Doc. Ah... Are you telling me that you built a time machine... Out of a DeLorean?
Dr. Emmett Brown: The way I see it, if you're gonna build a time machine into a car, why not do it with some style?
Marty McFly: [watching a Honeymooners episode in 1955.] Hey, hey, I've seen this one. I've seen this one. This is a classic. This is, uh, where Ralph dresses up as a man from space.
Milton Baines: What do you mean, you've seen this? It's brand new.
Marty McFly: Yeah, well, I saw it on a...rerun.
Milton Baines: What's a rerun?
Marty McFly: You'll find out.
Marty McFly: You know, Doc, you left your equipment on all week.
Dr. Emmett Brown: My equipment. That reminds me, Marty. You better not hook up to the amplifier. There's a slight possibility of overload.
Marty McFly: Yeah, I'll keep that in mind.
Lorraine Baines: Will we ever see you again?
Marty McFly: I guarantee it.
Lorraine Baines: Our first television set. Dad just picked it up today. Do you have a television?
Marty McFly: Well, yeah! You know we have... Two of them.
Milton Baines: Wow! You must be rich!
Stella Baines: Oh, honey, he's teasing you. Nobody has two television sets.
Marty McFly: If you guys ever have kids and one of them when he's eight years old accidentally sets fire to the living room rug... Go easy on him.
Marty McFly: Let's see if you bastards can do 90.
George McFly: Last night, Darth Vader came down from planet Vulcan and told me that if I didn't take Lorraine out that he'd melt my brain.
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.
Biff Tannen: I have your car towed all the way to your house and all you've got for me is *lite* beer?
Marty McFly: Do you know where Riverside Drive is?
Sam Baines: It's on the other end of town, a block past Maple. East end of town.
Marty McFly: A block past Maple? That's John F. Kennedy Drive.
Sam Baines: Who the hell is John F. Kennedy?
Doc Brown: Now, if my calculations are correct, when this baby hits eighty-eight miles per hour, you're gonna see some serious shit.
Answer: It's a way of saying "scram" or "get lost." But Biff is so dim, he doesn't realize he's saying it wrong; the expression is "make like a tree and leaf", with the joke being that "leaf" is meant to sound like "leave."
Cubs Fan ★