Igkstfo Share definition Flag Pronunciation: iks-te-foe. Acronym standing for "I'm gonna knock somebody the fuck out". Person 1: "I can't believe they just laid you off - what are you going to do?"Person 2: "Igkstfo." Igkstfo by CPinNC November 18, 2009 0 0 Get merch Get the Igkstfo mug. Buy Now — $32.95 See more merch
