a girl in a group of other girls that is drastically uglier and broader than the rest often making them look better(may also be a cockblock). the term is derrived from the phrase "Designated ugly fat friend". The -y at the end is added so the word can be used freely in the presence of the duffy without making it obvious that you are making fun of her.
by Fil P August 24, 2007
by The Whore and The Virgin April 05, 2009
duffy is a term in which to call a semi mildly mental retarded person
duffy is also a mistake or big accident
duffy is also a mistake or big accident
by righteousreviewz September 14, 2019
by banana fingers September 08, 2004
by CoolMD March 31, 2006
a person who when telling a story, never gets to the point and when he/she finally does, all audience has lost interest, fallen asleep, or killed themselves.
Let me tell you another story about my tales in the south
oh god, looks like we got a duffy
somebody plan my funeral
oh god, looks like we got a duffy
somebody plan my funeral
by Bode H February 12, 2008
When your spelling is so bad your own mother cannot read it and rejects you as one of her offspring.
by Kicksumass January 04, 2022