The primary villain from the popular 1980's animated series ThunderCats. His appearance is usually that of a mummy with a red cowl but he can transform into a more powerful form by reciting the words "Ancient spirits of evil, transform this decayed form to Mumm-Ra, the Ever-Living!"
by Strideo June 22, 2007
The result of drying your cock after sex with low grade toilet tissue. The result resembling what mumra from the Thundercats cock would look like.
"jeezy peeps, what the fuck is that White papery shit all over my bell end?"
"looks like that shitty bog roll I stole from work"
A classic case of Mumm ra's cock.
"looks like that shitty bog roll I stole from work"
A classic case of Mumm ra's cock.
by Gdubfunk August 18, 2011