グサッとMeanings1adverbdeeply (stab, thrust); hardonomatopoeic or mimetic word›Onomatopoeic adverb describing a forceful, deep stabbing or thrusting motion, often with a single impactful action.See also: ぐさり犯はん人にんは被ひ害がい者しゃの胸むねにナイフをグサッと刺さした。The culprit stabbed the victim deeply in the chest with a knife.