MCB

Master Cock Block- The one guy or girl that always appears and cock blocks you to the extreme

Earl: Hey Jim, did you get any last night?
Jim: Nah, Right when I was about to Tom came in and cock blocked me
Earl: Word? This is the 5 time this week.
Jim: I know, He's such a MCB

by Monkeyboy132 September 06, 2010