Green’s Dictionary of Slang

a very unattractive woman.

1970		R.J. Rayward (ed.) More Than Mere Bravo (1988) 122: fugly – An extremely ugly woman. A blending of ‘fucking’ and ‘ugly’ to describe the woman.
1984		Canberra Times (ACT) 25 Feb. 23/1: [personal advert] stinky and fugly have finally done it!!!! thank you St Jude for prayers answered.
1996		KID: Kids’ Internet Dict. 8 June 🌐 fugly: extremely ugly. ‘look at him, what a fugly!!’ Comments: short for ‘f**king ugly’. Informant: Age: 14; School: mater christi college; State: victoria.
2001		G. Pelecanos Right As Rain 167: Nice seeing you, Gene. Stay away from the fuglies, hear?
2005		Picture (Sydney) Feb. 79/2: Just when I thought all was lost, a real fugly took me by the hand and whispered she had a spell which would help with my problem.
2011		S. Kelman Pigeon English 29: A fugly is a girl who always wants a baby from you.