fr doe Share definition Flag Shortened for "For real though." It can be another way of saying "I know, right" but more slang. Usually when someone agrees with a statement 100%. Person 1: She's a fucking nuisance. Person 2: Fr doe. I'm sick of her shit. fr doe by fhk x3 May 24, 2016 0 0 Get merch Get the fr doe mug. Buy Now — $32.95 See more merch