悪舌[akuzetsu] evil tongue
三寸の舌[sanzunnoshita] eloquent tongue
舌禍[zekka] slip of tongue
舌鼓を打つ[shitatsuzumiwoutsu] to smack one's lips at
舌先[shitasaki] tip of tongue

舌戦[zessen] war of words
舌っ足らず[shitatarazu] lisping
舌打ち[shitauchi] smacking lips
毒舌[dokuzetsu] wicked tongue