Top Definition
a game that involves a group of men that ejaculate on to a biscuit and the last to ejaculate has to eat the biscuit.
i played mucky biscuit last night with my friends and lost on purpose
by JonnyNasher December 17, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.