A word invented by Brian Teal, once used in almost every sentence on a band trip, most commonly used as a generic insult, although the word appeared to have other meanings, which no one could explain. The example only lists the generic insult version.
"Dude, clif, your such a humpist"
"I dunno what that humpist back yonder was doing. Tried to run me off the go-kart track"