(Internet, abbreviation, alt-of, initialism, qualifier:dating, vulgar) Initialism of down to fuck (“willing to engage in casual sex without necessarily seeking that in particular”).
I really want a LTR, but I'm DTF if you're hot and dumb.
In Jilly Cooper’s world, men conquer, women sigh, the sun shines perpetually on pale-gold Cotswolds mansions with bluebells in bloom, and absolutely everyone is DTF, as the parlance goes. 2024 November 14, Sophie Gilbert, “The Silliest, Sexiest Show of the Year”, in The Atlantic:
I asked if he was dtf, and he said to be over in 5 minutes.