This is where I choose a random word or phrase from the Japanese language and go through the details of what it means, how to use it and what not. Sound fun!? Hell yeah!
一網打尽 いちもうだじん ichi-mou-dajin
一 いち Ichi, meaning one
網 もう Mou, meaning net
打 だ Da, meaning to hit or in this case get a hit (capture)
尽 じん Jin, meaning til the end (capture til the end, capture all in this case)
In a literal sense it means to catch all the fish or all the animals around in one net. It can also be used in situations where you do a certain number of tasks in one fell swoop.
Example sentences:
一網打尽に問題を解決する いちもうだじんにもんだいをかいけつする To solve all problems in one go
君たちは一網打尽だ! きみたちはいちもうだじんだ I am going to get you all in one go!
So there you go, hopefully you can go away with this and start using it everywhere.
Why did I start with this phrase? I don't know, it was the first thing that popped up to mind :p