Biff Tannen: Kid! I own the police! Besides, they couldn't match up the bullet that killed your old man!

Biff Tannen: I guess it's poetic justice, two McFly's with the same gun.

Doc: Marty! What in the name of Sir Isaac H. Newton happened here?

Doc: No! It can't be! I just sent you back to the future!
Marty McFly: You did, oh, I know, you did send me back to the future, but I'm back -- I'm back FROM the future.
Doc: Great Scott!
[faints]

Biff Tannen: That's about as funny as a screen door on a battleship.
Marty McFly: [under his breath] It's "screen door on a submarine," you dork.

Lorraine Baines: Biff Tannen, I wouldn't marry you if you had a million dollars.

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.

Old Biff: [watching the chase unfold in 2015] There's something very familiar about this.

Marty McFly: That's right, Doc. November 12, 1955.
Doc: Unbelievable, that old Biff could have chosen that particular date. It could mean that, that point in time inherently contains some sort of cosmic significance. Almost as if it were the junction point for the entire space-time continuum. On the other hand, it could just be an amazing coincidence.

Marty McFly: Forty-five bucks for a Pepsi? This IS the future!

[In 2015, Marty wants to play the restaurant's video game.]
Marty McFly: Where do you put in the quarter?
Video Game Boy: What's a quarter?

S. S. Strickland: Eat lead, slackers!


Marty McFly: Nice shot Doc! You're not going to believe this, we have to go back to 1955.
Doc: I don't believe it!

[Biff has just received his auto repair bill after crashing it into a manure truck]
Biff Tannen: 300 bucks? That's bullshit!
Mechanic: No, it was horseshit, and it was all over your car!

Biff Tannen: Hello McFly?! Do you think he calls me gramps just for the good of my health?

Doc: We are descending towards Hill Valley, California, at 4.29pm, on Wednesday, October 21st, 2015.
Jennifer: Future, Marty? What do you mean? How can we be in the future?
Marty McFly: Uh Jennifer, I don't know how to tell you this, but.....you're in a time machine.

Marty McFly: The 'Sports Almanac'. Son of a bitch! He stole my idea...oh my God! It's all my fault.
Doc: eh, that's all in the past.
Marty McFly: You mean the future.
Doc: Whatever!

Marty McFly: I don't understand this, Doc. How can this be happening? It's like we're in Hell or something.
Doc: No, it's Hill Valley. Although I can't imagine Hell being much worse!

Doc: Oh and Marty, be careful around that Griff character, he's got a few short circuits. In his bionic implants.

Biff Tannen: Get the hell out of my car old man!

Marty McFly: I had a horrible nightmare. It was terrible.
Lorraine Baines: Well, you're safe and sound now. Back on the good old 27th floor.
Marty McFly: 27th floor?!

Needles: Hey, the big M! How's it hanging, McFly?

[After Marty pushes Griff]
Griff Tannen: Wow! Since when did you become the physical type.

Biff Tannen: Where is he?
CPR Kid: Who?
Biff Tannen: Calvin Klein.
CPR Kid: Who?
Biff Tannen: The guy with the hat. Where is he?
CPR Kid: Oh he went that way. I think he took your wallet!
[to camera]
CPR Kid: I think he took his wallet.

Marty McFly: 'Cubs win world series against Miami'?
Old Man: Yeah. Who would've thought? 100 to 1 shot! I wish I could go back to the beginning of the season, put some money on the Cubs.
Marty McFly: I just meant Miami-...what did you just say?
Old Man: I said I wish I could go back to the beginning of the season, put some money on the Cubbies!

Old Biff: You wanna marry that girl? I can help make it happen.
Young Biff: Oh yea, who are you, Miss Lonelyhearts?

[Biff has chased Marty to the roof of a building]
Biff Tannen: Go ahead, kid! Jump! Suicide will be nice and neat.
Marty McFly: What if I don't?
[Biff points gun at Marty]
Biff Tannen: Lead poisoning.