Top definition
Ugly Ass Mother Fucker. This word can be used to anyone you have anger for or think is really ugly.
My ex-boyfriend is a total UAMF!

Your cousin is a UAMF.

Or you can bluntly say it "UAMF"
by Rianna D. A. Corby April 12, 2007
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May 3 Word of the Day
Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)
Monica: Oh yay! I made a new mutual today because we started following & talking to eachother on twitter and we like eachother (so it seems).
by qtheresurrection March 25, 2015
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