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1.
Mud But is the way you feel after you've had McDonalds for breakfast.
I just had a B.L.E.T. Bagel from McDonalds and Now I've got MudBut. I'm pissing through my asshole.
автор: Paul Maletic 5 декабря 2008
 
2.
when one farts and it sounds like they shit themsleves.
Justin must have mudbut, because it smells like shit.
автор: Jrue 29 января 2009
 
3.
A Mudbut is a small mythical woodland creature found in rural central Pennsylvania. This creature is slightly smaller than a cat and extremely fuzzy. To see this animal would remind you of a koala bear mixed with a household cat. It gains its name by the sound it makes which is in a very highpitched light voice it say "mudbut"
Holy crap there's a mudbut!
автор: big willy mcClain 27 апреля 2006