It means- "Down To Fish" according to Vinny on the show Jersey Shore. Down To Fish can be used as an alternative if there's a girl wants you and truly doesn't know the meaning of "DTF" which truly means "Down To Fuck".
Hoe: Hey what does DTF stand for?
Vinny: Down To Fu....Down To Fish!
Hoe: Oh okay let's go fishing.
Vinny: I really would like to but I just ate a 3 dollar burrito and I really need to drop the kids off at the pool, sorry.
Vinny: Down To Fu....Down To Fish!
Hoe: Oh okay let's go fishing.
Vinny: I really would like to but I just ate a 3 dollar burrito and I really need to drop the kids off at the pool, sorry.
by Nwahsy360 April 21, 2012
Get the DTFmug. by Flazy June 24, 2019
Get the dtfmug. Abbreviation for "Doomed to Fail."
by DrkInsanity November 12, 2006
Get the DTFmug. by M3nt!on April 5, 2010
Get the DTFmug. by Zack288 March 3, 2008
Get the DTFmug. 
