Duff the DESIGNATED UGLY FAT FRIEND as a duff i would know its not fun ,sometimes u get ignored by ur friends and you feel left out
"I was a DUFF back in middle school."
by Vampie the queen October 20, 2021
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. dick unimaginatively fat as fuck
by not duff November 20, 2018
Get the duffmug. dumb ugly or fat friend...
by NorCal Slanger March 27, 2017
Get the Duffmug. by Jsnsinebusisnssn August 7, 2017
Get the elliot duffmug. 
