Mister Muscle

One's penis, of course.

"That cricket ball hit me square on my Mister Muscle! Good thing I was wearing the old jelly mould!"

by Bugzapper March 2, 2014

mastermuscle

the muscle that you get when you masterbate too much

-Dude did you see that bodybuilder!
-Thats pure mastermuscle. it probably took him years to get it.

by closp0215 August 17, 2010