Someone consistently terrible at gambling. The most common type of Mahoney is someone who bets on sports & loses approximately 80% of his bets. You do not want to have bet on the same side as a Mahoney. Mahoney is interchangeable with Mush. DO NOT take gambling advice from either a Mahoney or a Mush!!!
I felt good about my Falcons bet until I realized the Mahoney also loves them. That's $200 down the drain.
by mikejojo May 23, 2022
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Eating a loud crunchy food, such as corn nuts, in the close vicinity of someone trying to concentrate.
That bitch pulled a mahoney when I was trying to take the SAT.
by hesKEET May 4, 2006
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the action of taking a shit on a girl's chest, directly in the center, which may or may not include smearing it inbetween the titties.
I gave that hooker a mahoney in a cheap hotelroom.
by the juggernaut April 21, 2006
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White people. Neither derogetory or complimentary. Why? Well do you know any Black people named Mahoney? 'Nuf said.
Guy 1-Yo, Where you going today?
Guy 2-I gotta go downtown and fuck with them Mahoneys.
by BigBad Wolf June 8, 2006
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a person that blasts techno music out of a Caddilac Escalade.
"you see that? thats a real mahoney right there!"
by nucci888 September 23, 2008
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a thief who will steal anything not nailed down
your such a mahoney!

or

this place has been ransacked, a mahoney must have been here!
by Kieran Thornton September 20, 2006
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Someone who has a very very small penis
Keaton Mahoney had the smallest penis ever -Samantha
by Boi47747373 February 21, 2017
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