Slang for the sperm.
A smile edged across my face as I emptied my "fuck muck" on her.
by Bo Retro 1974 April 22, 2005
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The mixture of lubricants and secretions generated by the genitals as a result of coitus. AKA sex syrup.
We lay, exhausted but deeply satisfied, in a pool of our own fuck muck.
by Irritatus Maximus November 23, 2007
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after having sex, nasty smells come from the vagina or asshole.
Erika: after me and Adam were done with it, all that was left was a bunch of fuck muck

Jessica: thats never good.
by sexexpert101 March 12, 2011
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When u fuck someone in poo.
person #1)I had the craziest muck fuck last night yo.
person #2)Ur a crazy bitch. I would never muck fuck a fuckin chick u fuck
by Poonum April 20, 2005
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1. n. An individual who walks so slowly (usually right in front of you) that it seems as if they must be bogged down in some sort of mire. Also, one who walks with excess swagger and achieves the same effect.

2. v. The act of doing the aforesaid.
1.
Teacher: Jack, why are you late for my class?

Jack: Sorry Ms. Porter, there was a pack of muck fucks dragging ass down the hallway.

Teacher: I understand completely.

2.

Jack: I'm sick and tired of muck-fucking walls of idiots taking up the entire hallway!
by Factuality April 20, 2010
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The act of fucking a man or woman who has been fucked and internally ejaculated into by no less than 3 previous parties in a 30 minute period.
"That bitch was a total muck fuck!"

or

"I's about to be gettin' meself into a serious muck fuck, Argghhh!"
by veegee75 January 15, 2009
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having anal sex without douching first so you ram your cock into a wall of shit in her/his ass
hey did you fuck that bitch from the bar last night?

no she had a shit fetish so she wanted to muck fuck

D:
by the seat for all ass' February 01, 2013
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