dick unimaginatively fat as fuck
by not duff November 20, 2018
Get the duffmug. Designated Ugly Fat Friend
A DUFF doesn't actually have to be fat or ugly, just less attractive than the people they are with
Also, a person can be one of the hottest in one group of friends, and the least hot (and therefore the Duff) in an other group
A DUFF doesn't actually have to be fat or ugly, just less attractive than the people they are with
Also, a person can be one of the hottest in one group of friends, and the least hot (and therefore the Duff) in an other group
The duff is the less attractive friend and therefore easier to talk to than the hotter friend you are trying to score
by Astr1767 June 14, 2015
Get the duffmug. Harry:look at them! The perfect triangle!
Mads: You are right! Spencer, Abby and the other girl.
Harry: haha the duff?
Mads: yes
Mads: You are right! Spencer, Abby and the other girl.
Harry: haha the duff?
Mads: yes
by E.Christin January 23, 2016
Get the Duffmug. 
A DUFF is a D- Dumb U- Ugly F- Fat F- Friend basically the girl or boy that tries to cockblock you when you are trying to make a move on a girl or a boy
by Kiddericc March 22, 2021
Get the DUFFmug. by Skkrt skkrt November 3, 2019
Get the Bailey Duffmug.