A word used to show you don't know the answer to something or your just confused.
Guy 1: who was the first president of the United States
Guy 2: um buhhhhh
1. An action typically of eating or drinking or just doing something really cool.
2. A description of something that is typically bad or showing how crazy the person/thing was.
1. Hey, do you wanna go muck on some chips.
2. Dude I was mucked on New Years it was lit.
3. Yeah we should definetely party together, that would be great muck.