Fahcoff Share definition Flag Fah` coff. It is the saying of the term "fuck off" while faking a cough. John- Dude you are such an ass. Tim- (coughing) Fahcoff. Fahcoff by Mike B. Taylor August 6, 2007 0 0 Get merch Get the Fahcoff mug. Buy Now — $32.95 See more merch
