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1.
A sketch comedy group based in LA
I saw the new MuddyOnion video, and I giggled.
by poncho and saddleup October 26, 2011
 
2.
an alternative word for the anus
the other day i woke up and my girlfreind was bent over with her muddy onion showing so i couldnt resist sticking my cock in
by thejackhammer69 June 10, 2010
 
3.
A very funny youtube channel created by two super awsome dudes. The videos include zombies, guitar riffs, and alley ways.
"I'm sad, I need to laugh"
"Hey you should watch a MuddyOnion video!"
"OMG I watched one and I LOLED!"
by meowbromeow April 11, 2012