[ninaru](suf) (1) becomes; will become; turns out; (2) (with "o" and masu-stem of verb) grammatical form creating an honorific verbal expression; (P)[Add to Longdo]
[ミイラとりがミイラになる, miira toriga miira ninaru](exp) intending to persuade someone and instead being persuaded oneself; going for wool and coming home shorn; the biter bit; the mummy hunter himself becomes a mummy[Add to Longdo]