The act of putting semen all over a person's body.
guy 1 : Yo dude join my Minecraft server
guy 2: hold on dude I'm getting mummified
Have anal intercourse, when finished, use a towel or toilet paper to wipe off your penis. For the brief moment it is covered in cloth, it has been mummified
Bro did you get mummified last night?
Hell yeah! Jenny is a freak!
Mummified cat man- a guy who is so disgusting and unhygienic that when you look at the space that they occupy, they might as well have mummified cats like the show Hoarders Buried alive.
"There's that guy from work I was telling you about the one that wears the same clothes all the time and has black teeth, it's the mummified cat man"