
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.

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.

Dr. Logan: Civil behavior is what distinguishes us from the lower forms. It's what enables us to communicate. To go about things in an orderly fashion, without attacking each other like beasts. Civility must be rewarded, captain. If it isn't rewarded, there's no use for it. There's just no use for it at all.

Colonel Tom Carlsen: She's resisting. I'm going to have to force her to tell me. Despite appearances, this women is a masochist. An extreme masochist. She wants me to force the name out of her. She wants me to hurt her. I can see the images in her mind. You want to stay? Otherwise wait outside.
Colonel Colin Caine: Not at all. I'm a natural voyeur.

Beth Sladen: I saw a movie once, where a group of people were trapped in an ice station by a carrot from another planet.