A person who doesn't seem to realize that they're not liked by the group they call their "friends". As it turns out, this person is hated by everyone in that group.
Person 1: Do you know who was following me this morning?
Person 2: Yeah I saw him, that dude is a tud thumper.
Little balls of shit that get caught in your ass hair's after wiping. Usually gets worse as you get older, generally rolled with small amounts of toilet paper.
Man, my ass is itchy... Must be full of tud balls.