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.
Wyatt: By the way, why are we wearing bras on our heads?
Gary: It's ceremonial.
[Later, after Wyatt talks to Chet, Wyatt begins to leave the kitchen and Chet sees him wearing women's underwear.]
Chet: Like your panties.
Wyatt: [walking back into kitchen] It's a joke, Chet. Really.
Chet: No. That is not a joke. That is a severe behavioral disorder. Next thing you know you'll be wearing a bra on your head.
Tina: Why don't we go to the park?
Scuz: Oh we can't, the cops said they'd shoot us if we go back to the park.
Spider: Yeah, and I ain't in no mood to die tonight.
Trash: I like death.
Chuck: I like death with sex. Casey, do you like sex with death?
Casey: Yeah so fuck off and die.
Herbert West: I know your work, Dr. Hill. Quite well. Your theory on the location of the will in the brain is... interesting. Though derivative of Dr. Gruber's research in the early 70s. So derivative in fact in Europe it's considered plagiarized.
Darren Woods: She was a good ship.
Chris Knight: Do you mind if I name my first child after you? "Dipshit Knight" has a nice ring to it.
Max: We'll go on the count of three.
Max and Pig Killer together: One...
[Max yanks the door open.]
Pig Killer: What happened to two?
Beth Sladen: I saw a movie once, where a group of people were trapped in an ice station by a carrot from another planet.
Daryl: What is a hooker?
Space Girl: The web of destiny carries your blood and soul back to the genesis of my lifeform.
Ben Luckett: So you think it's like Bernie said? We're cheating nature?
Mary Luckett: Yes.
Ben Luckett: Well I'll tell ya, with the way nature's been cheating us, I don't mind cheating her a little.
Captain Rhodes: Go on run, run you fucking lunatics.
'Chocolate Chip' Charlie W. Hobbs: Don't you know who I am? I am Chocolate-Chip Charlie! My hands are registered with the Medford, Georgia, police as lethal weapons, and I eat them guns for breakfast.