潰す
1
to smash;to crush;to flatten
彼は私の帽子をぺちゃんこにつぶした。
He squashed my hat flat.
2
to shut down;to put out of business;to force (a company) to close up shop
3
to wreck;to break;to block;to thwart
彼は平然と取引をつぶしました。
He sank the deal without batting an eyelash.
4
to butcher;to slaughter;to kill (livestock, for food)
5
to kill (time);to while away (the time);to use up (one's time)
彼女は店を見てまわって１時間つぶした。
She killed an hour looking around the stores.
6
to waste (e.g. talents)