Top Definition
Thanks for Fucking Nothing......... or with an Irish accent "Tanks for Fuckn' Nuttin"
"My dumb-ass sister announced to the whole family that I'd borrowed money off of our elderly parents..... "well, TFFN !!!!!!"

"you're telling me that I can pay by check but the cable service won't be reconnected for three days after the check clears"..........."well TFFN !!!!"
by scurvyseapup2 December 13, 2009

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