an 'ugly duckling' that has become a beautiful swan [=an ugly/unsuccessful person or thing that has become beautiful/successful]
('informal') That dog of yours is '(as) ugly as sin'. [=very ugly]
The house is an 'ugly duckling', but it has a lot of potential.
(..) - It's your gal. - Come on! - Come get a piece of Tallahassee! - Anybody hungry? Tallahassee-nice over here. Come on, come on you ugly bastards. - Holy Shit! - Holy Shit! - Shit, I'm out of shells. - Here we go. - Wichita! Little Rock! (..)2009 Zombieland