The time when Dinosaurs roamed, the Age of the Reptiles.

a slang term used to describe an obvious lesbian. She is described as prehistoric because she is a direct descendant of a "Lick-alotta-puss". Lipstick lesbians are not prehistoric because they are not easily picked out as a dyke

head, bj all oral sex to the dick
the GD way of sayin head

R u gettin that prehistoic?
Im gettin that brontosaurus!!

Refers to an old Text message.

a style and way of being that seemlessly meshes the clothing and attitude of a video game geek and an unhappy suburbanite. Catagorized by Chuck Taylors, sweater vests and wacktastical hair. Also occasionally a member of the awesome mode of style. Often closely related to post-cyber hipster attitude and dress.

To yell out window of building or moving vehicle as a form of communicating.

PMS- pre-menstrual syndrome