Top definition
"Busting one"is busting one of your testes, another word for ejaculation. "Fat" is simply an emphasis for the amount of sperm ejected from the penis, in this case there's a lot of, and you better hope that thot enjoys your white warm creamy testicular fluids.
*Girl kneels down*
*sucks man's Penis*
*Man's about to climax*

Jerry: I'm going to be busting a fat one on your face
*Jerry pulls out of women's mouth and aims the penis towards her face*
*Jerry shoots*
*Jerry satisfyingly watches the sperm trickle down her face*
by Woketh Loops August 04, 2018
Get the mug
Get a Busting a fat one mug for your Facebook friend Yasemin.