Top Definition
Derived from a group of male students identified by their rodent tendancies in Preston (UK) circa 2003-4 who travelled round the town in a unit.
Psyching themselves up for a good night of rat behaviour, members would often call out "Rat Unit", and use the term as a defence for any rat behaviour that is carried out.
by Tedward McForeskin March 14, 2005
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.

×