To eat ass. Eat out the rear end of a female or male. Similar to mucking barn.
After a long day at the donut shoppe, nothing made Little Jeff happier than coming home, bending Betsy over, and mucking shed.
Let's take a trip through the the ages...
Ok, so big muck is ACTUALLY a modern stand-in for old-timey phrases; muck-a-muck, mucky muck, muckety muck, or lord muck, which, when used, make a buddy sound like an ol' piece a' coal. Each are synonymous with such other, old-timey-yet-choice phrases as, big enchialada, big kahuna, big daddy-o, big cheese or big banana.
"Who's the big muck around this 'ol heap, anyhow?"
"They got me good, Pa, 'appears I'm fixin' to meet the BIG MUCK, upstairs...(gasp)"
"I'm the big muck in my world, and I'll wear a leisure suit whenever and wherever I please, thank you very much..."
One's rearmost orifice; Rump booty
"I say Tarquin, that's a jolly looking filly there! I'd most like to have a munch around her Muck Larder!"
lipstick
derived from nadast language, that was made famous in anthony burgess', a clockwork orange
she had so much goober muck on, her lips were neon!
A female's smelly vagina. Typically a prostitute.
Paul thought that he hit a home run last night with Debbie, until she dropped her panties. Her muck twat left a pungent odor that lasted for weeks.
Mr. Rowe prefers a mouth full of muck twat every morning to start his day off.
Fox, don't think about following through on your dumpster date with Shelly, unless you are in the mood for a ripe muck twat.
An extreme state of disorderliness
The garden shed is a mucking fess
The unordinary, unpleasant state of being exuberantly mucussy.
Person 1: man, I've been feeling really mucked up recently.
Person 2: How do you mean?
Person 1: ja know, just super mucussy