mugface
1. An adjective to describe a person with mug-like features, or who has just done something which is clearly stupid.
"Oi, you, stop impersonating an ambulance. This is a Church. You Mugface."
Mugface
Comically ugly, Unfortunate in appearance, One which should generally be avoided.
You're a right mugface
mugface
An adjective to describe a person who has done something really stupid.
Can't believe you spilled the wines, Ray. You Mugface!