Mumm-Ra 

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!"

The evil Mumm-Ra has been plotting to rule over all of Third Earth!

Mumm-Ra by Strideo July 21, 2007

Mumm-Ra'd 

Drunk beyond all capacity to function. Passing out on the ground, vomiting upon one's self, running into foreign objects, and possibly waking up the next day with a splitting headache, alcohol poisoning symptoms, and a $222 public drunkenness ticket in your pocket.

"Yo, this morning i found a $400 bar tab in my jeans... and that's AFTER i woke up next to a chick who couldn't get out of her house without the assistance of Richard Simmons and the jaws of life. I was utterly Mumm-Ra'd!!!!"

Mumm-Ra'd by cynical30 March 27, 2009

Mumm ra's cock 

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.

Mumm ra's cock by Gdubfunk August 22, 2011