A drug dealer that sells musty drugs or smells musty.
Jim bought some weed from his dealer, but then it turned out that the niggah was a mustler.
In an FPS computer game, when one one player jump-crouches on another's head (usually the player jumped on is AFK or a camper) and begins teabag
ging that player.
"Lol, that camper n00b just got totally spawnpawned!"
The suggested size of someone's penis, usually mentioned in IMs.
"lol, he's such a dork, but he's got huge texticals"