おこ
okoridasu

Godan Verb (su)

1. to fly into a rage; to lose one's temper; to flare up; to break out

そうやってしつこく彼女 かのじょ こまらせると、彼女 かのじょ おこ すぞ。
sō yatte shitsukoku kanojō komaraseruto kanojomo okoridasuzo.
If you persist in bothering her like that, she'll lose her temper.
Other forms: