Nickname commonly used for people with the name Marcus. This nickname is often given to Marcus if they constantly want to party, or if they are assholes, and sometimes when they are assholes who constantly want to party.
1. Question: Who should we invite to our kick ass shindig? Response: Well, definately Marcass, you know he's always up to party!

2. Don't invite Marcass he always gets drunk, kicks peoples ass in beer pong, and then talks shit on everybody. Sometimes he can be a real asshole.
by The Rothchild January 22, 2009
Get the Marcass mug.