ugly mofo 

a person with no inner or outer beauty

that's one ugly mofo

ugly mofo by Tox April 2, 2004

Ugly Mofo 

The person you see in the bathroom above the sink

Charlie: Hey, Marie do you know what an ugly mofo is?
Marie: Of course I do! Just look in the bathroom above the sink and you'll see one
Charlie: God damnit

Ugly Mofo by Shady~Rose~06 March 24, 2021