A mix of ugly and the f bomb to really use emphasis on how ugly the ugly really is.
My mom called my new disastrous haircut fugly, so it must be really really bad!
An insult used to describe one that is ugly to an such an extent that the word "fuck" is a part of it for emphasizing.
Gerald : You're a bitch!
Tyler : You're fugly!
It means you or the person it was directed at is Fuckin' Ugly
Petricia was looking Fugly, as usual
pov: someone called you fugly and now you're upset looking through all the definitions
them:"you're so fugly what the fuck"
you: *makes mental note to urban dictionary that* "hahahaha yeah..."
combination of 'fucking' and 'ugly'
Sara is so fugly
That shirt is like your mom: fugly