mudd helmet 

The small amount of fecal matter left on the tip of your penis after anal sex, resembling a small mudd helmet

Dude, I fuckin love anal, but maaan, i hate removing the mudd helmet!!

mudd helmet by mechy20 July 12, 2006

mudd helmet 

A thick condom you use while engaging in anal sex!

Im gonna go get my mudd helmet on cause Im gonna go hit up delia's ass caverns

mudd helmet by mooseknuckles November 11, 2002