Top Definition
Mucky bum is derived from the ol' salty eye but it actually happens when you've tried to push out a fart that wasn't really a fart afterall thus creating the mucky ooze that starts the ol' salty eye process.
Hey man, I think I've got the ol' Mucky bum happening and I've gotta go finish up the paperwork.
by brentlyexperience August 31, 2008

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