DUFF means designated ugly fat friend
this person doesn't have to be fat and ugly to be a duff they are usually the one everyone goes to for information on one of the pretiter friends in the group
this person doesn't have to be fat and ugly to be a duff they are usually the one everyone goes to for information on one of the pretiter friends in the group
by makaaay March 28, 2015
Get the duffmug. by RenegadeLacrosse November 8, 2019
Get the Duff Jammug. A monster tard you work with. Usually nothing good comes out of there mouth. Comparable to douchebag
by Going6to6hell6 January 19, 2017
Get the duff bagmug.