一網打尽

いちもうだじん

noun

•

round-up (e.g. of criminals), wholesale arrest, catching the whole herd with one throw(yojijukugo)

一	one, one radical (no.1)
網	netting, network
打	strike, hit, knock, pound, dozen
尽	exhaust, use up, run out of, deplete, befriend, serve

わたし

どろぼう

いちもうだじん

たいほ

I arrested many thieves at the same time