mudstrap 

The strap I put from my ballsack to my butthole to make sure I don't get poop on my underwear.

Damn nigga. I can't eat taco bell, I didn't wear my mudstrap this morning.

mudstrap by joeissogay March 14, 2014

Mudtrap 

Another word for mouth, as in 'shut your mudtrap'. The similarity between mud and crap could also mean the person is implying that the other person talks through their arse.

'Shut your mudtrap hooligan!'

Mudtrap by MzMudtrap May 12, 2010

Mustrap 

The Mustrap is a term used to describe facial hair that starts as merely a simple mustache, but then expands down the side of the mouth in forms of handle bars, and then creates a strap that connects to the hair line (sideburns). The mustrap is rarely seen in hollywood, because only the toughest of men dare to sport the look

mustache+chinstrap = mustrap

Mustrap by McLeodx November 12, 2010