Immediate meaning of DTF is Down To Fuck however it has become a 'call to arms' for a night out.
Friday night: Jimmy - Lads who is DTF tonight.
Sean - Sorry guys I have sand in my vigina and can't come out (hence not DTF)
Everyone else - I am way DTF (displaying an extreme level of DTF, hence is willing to go out, drink alcohol and try to pick up birds)
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