BAFAN is a mnemonic for "Bust A Fat Ass
Nut". BAFAN means to expel a great deal of
semen all over a girl during an
intense climax.
example: "Dan pulled out and BAFAN'd all over her ass!"
example: "man, this day is stressin' me out. I gotta go
home and BAFAN."
example: "man, I've been tryin to
get with this cock tease for months. I
just want to BAFAN all over her!"