1.A nugget hanging from one's buttock that they happened to have missed when using the toilet paper.
2. also used as an insult
2. also used as an insult
"John, you're such a buttnugget!"
"Ew. You have a buttnugget leftover from when you went to the bathroom, dude."
"Ew. You have a buttnugget leftover from when you went to the bathroom, dude."
by gorgolflagnag & the wumpster February 13, 2010