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The time when Dinosaurs roamed, the Age of the Reptiles.
"Isn't that dinosaur skeleton from prehistoric times?"
by TIGGY :) December 08, 2013
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
Dude, look at that dyke playing 3'rd base with the short ass hair, she dives for every ball like she's diving for muff. She's prehistoric.
by Johnny Striker July 10, 2008
head, bj all oral sex to the dick
the GD way of sayin head

R u gettin that prehistoic?
Im gettin that brontosaurus!!
Damn! im getting good Prehistoric
by GD einstein March 29, 2006