Oh, it means that you think you're an awesome karate dude that can do anything, and that I'm an incompetent schmuck who needs a gun that shoots farts at people.
自分はカラテの名手で何だって出来るけど 俺は屁みたいなガスをぶっ放す銃を持たなきゃ 使えないアホだと思ってるだろ