Top Definition
Noun: Mobile Keg Unit

Used at parties a person takes a keg and puts it in a military style backpack, or one that is big enough to fit a keg, they walk around filling up any beers that are

The people made into MKU's are normally made to do so as punishment in a bet or in many cases pledges have to as punishment.
Guy 1 "That pledge really sucks."
Guy 2 "Ya well that's why he is an MKU tonight."

Guy 1 "Hey pledge come fill my beer."
by GMU February 27, 2008
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.