Top definition
A person with a signature jesture or item used in sex.

(Can include anything - but the person is always called a thinghumper)

A thinghump is the name of the item or gesture.
Dude 1: "My uncle is a thinghumper. He drinks Coors Light doing my aunt."
Dude 2: "My dad does the D-Generation X crotch chop as his thinghump"
by fishboyultra December 12, 2008
Happy St. Patties Day!