It means that one's looks doesn't conform to the society's definition of pretty or attractive and even average-looking.
by potatoman42 February 22, 2019
Get the Uglymug. by #1 ugly bitch August 24, 2019
Get the Uglymug. by ShetHole May 7, 2021
Get the Uglimug. Me: You fat slimely smellty ugly exposed moldy baloney.
You: I'm sowwy fo hurting yo feewings, I will never do it again...
You: I'm sowwy fo hurting yo feewings, I will never do it again...
by ThisisntUKstfu February 1, 2021
Get the you fat slimely smellty ugly exposed moldy baloneymug. 
