ass mugged
when a person wipes his rectum onto the outer region of a coffee mug(usually where the mouth will be placed) with the objective to trick another person in using that mug unknowingly
My boss took out all his crap on me today so I ass mugged him to make me feel better.
mug ass
Can be an insult to mean someone is incredibly idiotic or stupid. Can also describe something good or really awesome.
"Whoa that guy is such a jerk, what a mug ass."
"Dude, your new shoes are so mug ass, i love em."
"Dude, your new shoes are so mug ass, i love em."