てんをあおぎてつばきす

天を仰ぎて唾す

to harm oneself as a result of trying to harm someone else; to cut off one's nose to spite one's face; to look up at the sky and spit

N3Expression
Expression, Su verb (precursor to suru)
to harm oneself as a result of trying to harm someone elseto cut off one's nose to spite one's faceto look up at the sky and spit