Slang. Describes the situation in which a person, most commonly a UNIX user, posts pornography of a guy humping a girl on his account's website, gets the admin in trouble, and gets his account deleted. Refers to the original offense in which the person's username was actually "posthump"
Yeah, Pier pulled a posthump again.
by EagleRock February 17, 2003
Proof that the UNIX commnity is a fag dominated shithole
by Anonymous February 17, 2003