When playing beer pong, you must drop a peanut butter m&m in your cup before drinking. if you don't you must drink another cup.
Also this is very DELICIOUS.
We were playing beer pong and we added the mmbeer rule.
by ultimategamer01 December 06, 2008

5 Words Related to mmbeer

Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×