the gunk that builds up in a female's vagina if she hasn't cleaned herself in a while. Very common if she's spent several days out in the field during Military training.
Guy1: Dude, that blonde chick just winked at me!
Guy2: Well, we have a couple hours off...and there are some private bushes over there...you gonna go for it?
Guy1: Nah, we've been in the field for two days. That's a lotta mucke in there.
Guy2: I just threw up in my mouth a little.
In web forums - to be scooped in the presentation of a story or topical news item.
MobyDick posted it here first -- I've been mucked!
Food, usually the type you eat when you're stoned.
Yo, let's go get some muck im fuckin ripped
getting pwnd, owned, murdered, hammered, killed, insulted, etc.
Dude, that kid just got mucked !
Doing something with aggression like eating.
I mucked that buffet....
Mucking down a sloppy joe right now text me later.
when you mess up something so horribly
"You mucked it James" Oliver said