Top Definition
Any posse of friends dedicated to the consumption of large sums of alcohol, destruction of public and personal property of others, and informing everyone that they are not as perfect as they are.
Ted: Who just threw that glass?
Sam: One of the Mean Streak Mafia chicks.
by Steebs September 22, 2011

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.