Murrtown Beatdown 

Basically a slang that some people from Murrietan descent use to threaten, bitch out, or otherwise joke around with someone. It describes a situation in which someone is beaten senseless by members of Murrieta's community. Sometimes shortened with MTBD.

James: Dude some dick took my girlfriend!
Kevin: Ah, we'll get him with an old Murrtown Beatdown!

Murrtown Beatdown by james002 February 13, 2009