slug² v [T] -gged, -gging 1informal to hit someone hard with your closed hand 【非正式】 〔用拳〕重击: I stood up and he slugged me again. 我站起来,他又给了我一拳。 2 slug it out to argue or fight until someone wins 辩个明白; 比出个高低,一决胜负: The two sides are slugging it out in court. 双方正在法庭上辩个明白。