A man with a below average semen count. An Oscar can often be found smoking weed or masterbating to ladyboy
Oscar Marsh has been caught getting head behind McDonalds for five pound from an extra terrestrial called Eloise
by Yourlocalcokedealer August 31, 2018

The devil of television, and the bane of Disney, this man is the person who oversees talent, thinks of shows, and ruins young minds. He is the President of Disney Channel around the world!
Person 1:Hey dude, I her the president of Disney Channel, Gary Marsh is in town.
Person 2: BURN HIM WITH FIRE!
Person 2: BURN HIM WITH FIRE!
by 493x October 31, 2012

"Better watch out for them marsh rabbits. They might take your leg off, if they had a mind to."
*reference to CSI Miami
*reference to CSI Miami
by #Anonymous December 9, 2008

(n) a 'Lady' who one would describe as neither attractive nor ugly, but you probably still would, regardless of eg. Large Teeth or bizarre eyes.
by cinimod February 15, 2004

shelly marsh is a south park character. diecartman is the real shelly marsh and if you disagree you have no father figure no friends and youre a trashy hoe and youre not a boss ass bitch youre a boss ass trashy hoe
my amazing mutuals: hey did you know diecartman is the real shelly marsh
stupid hater: ugh no he isnt go kay why ess
my mutuals: GRR ARF BARK JEKDKDKRKDNZL
stupid hater: ugh no he isnt go kay why ess
my mutuals: GRR ARF BARK JEKDKDKRKDNZL
by aino/shelly☠️☠️ July 21, 2022

A Fart that is let while driving back from a long day of body surfing in the ocean and smells like a rotten sour crab leg.
by Noltron Don April 17, 2009

A Marsh Carp is an obese, stupid, lazy, grouchy, dirty man that is commonly found anywhere in any down town area looking oblivious and distraught. They often try to flirt and harass cashiers and hookers. This is the male version of a Swamp Donkey
by Barney's version November 11, 2009
