FTK verb 1noun 1phrase 2forms 3 verb1 •(slang) To defeat (an opponent) on the first turn of a turn-based game.He must have made some kind of deal with fate if he managed to FTK her! noun1 •(slang) Initialism of first-turn kill. phrase2 •(slang) Initialism of for the kids. •(slang) Initialism of for the kill. formsFTKed · FTKing · FTKs