the same as a piece of poo, a terd, the result of a bowel movement. Often said by people who are too lazy to say that they need to take a crap. It is often said that one must "pinch a bun" when they must take a crap.
"Ah man I've gotta gopinch a bun!"
"Spray some air freshener after man."
A term of endearment used by basic bitches for their child, usually male.
These children are often seen faking smiles for endless, forced pictures of posed "happy" moments.
Ex. "Look at this little bun winning the award at school for having the most humblemum!"