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the piece of skin between one's balls and arsehole. also known as guch
that kid i know got a pen stuck in his bifkin and lost a shitload of blood...nice...
bifkin by ciaran February 12, 2004
Your bifkin is the skin between your balls and ur ass. created by Jake Wyatt, spread through detling. Nice to hear u've all heard of it!
See also - bifskin
Hey, stop licking my bifkin
bifkin by ilovemybifkin June 18, 2004
the skin between your scrotum and your anus which is used for anal penetration. stop buzzing fluff!
charlson strokes jacks bifkin until he ejaculates...fluff buzzes 24/7
bifkin by josephL August 13, 2003
the area tween fat peeoples assholes and their scrotum
yo been bad--lick my bifkin, ho
bifkin by F.A. June 7, 2003
the place between ur balls and your asshole see grundel or gooch
my bifkin is sweaty
bifkin by matt May 14, 2003
either a short, red headed, idiot, who acts like a fag and likes to suck on grundels,
or a fat, stinky kid, hopelessly devoted to jacking off.
shut up and quit sucking on that bifkin

haha...your fat and stupid. you look like a bifkin.
bifkin by chodeness December 13, 2003