A Mucker refers to romantic or sexual attraction or behavior among members of the same sex, and refers to an individual’s identity as a Mucker.
Most often a Mucker refers to the sex act involving insertion of the penis into the anus, with another male.
by Simon John. September 2, 2009
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A non-vulgar way of calling a person a fucker. An ass who screws around or messes with another person to put a situation into a state a crap.
"... your a mucker for doing this to me ... Thanks"
by jeefb March 14, 2006
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A term used in Northern California and the San Francisco Bay Area to address friends. Usually used buy young white males when greeting each other and usually combined with friendly insults. The term comes from the shortening of the generally unacceptable term "Mother-Fucker". The term "Mucker" gained popularity in 1994 when Quentin Tarrantino's film, Pulp Fiction was released, in which the character of Jules, played by Samuel L. Jackson, utters the longer version, Mother-Fucker, quite often. Can also be further shortened to "Mucka".
When two friends see each other at a party or a bar, they walk up to each other, slap hands and one says something like; "What's goin' down you fat ugly Mucker?"

or "'Sup Mucka?"
by Capt. Terrible June 17, 2010
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One who is high on meth and steals anything, insignificant or not, just for the sake of stealing.
"The muckers broke into Johns house after he got busted"
"That bitch mucked my jeans and my dope!"
by Gkelly September 9, 2005
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When you want to call someone a mother fucker, but don't want to get in trouble.

Origin:
In Texas Hold'em, you can fold your hand and throw your cards into the "muck". Now imagine someone does that to a mom. Pretty messed up.
"Hey why do I not get a raise this year? I'm outta here you mother mucker"

"Oh this mother mucker just cut in front of me."
by Kevin Ju-ann May 16, 2021
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An Individual who participates and thoroughly enjoys performing oral sex on females.
1) We're all Barn Muckers here
2) That Eddie is a damn fine Barn Mucker.
3) See all those beauty guys right there? Barn Muckers for sure.
by Blackhawkz11 November 15, 2010
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Someone who enjoys having sex with the elderly.
You are such a barn mucker, stop fishing for hoes at the bingo hall!
by Schlongdong69 January 16, 2019
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