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1.
acronym for "not down to fuck"
Guy 1: yo Ian, wanna buy some doorags and smoke some cron cron?
Ian: Nah b, NDTF. I is not gangsta enough.
by suck ma jewce April 21, 2009
 
2.
means "and to fuck"
Joey0193: hey what do you like to do when youre bored?
Susie2341: I like swimming and hanging out what about you
Joey827: Games, hanging out, ndtf
by thatsnotfunny June 29, 2010