Adjective. A pimp is someone who dresses like they are from the late 80's/early 90's
"Yo, this guy looks like a proper pimp"
basically just a human trafficker
"A pimp just slapped his prostitute"
Computer slang for "peeing in my pants". When lol, rotfl, or lmfao just doesn't convey how hard one is laughing, pimp takes it a step further.
See also: lol,rotfl,lmao,lmfao
Dave: Why did Tigger stick his head down the toilet?
Steve: I don't know....why?
Dave: He wanted to see Pooh
Steve: PIMP!