おじゃんになる
ojanni naru

Godan Verb (ru)
Expression

1. to fall through; to come to nothing; to be ruined

貴女 きじょ だい怪我 けがをさせられたせいで、この 夏休 なつやすみの予定 よてい全部 ぜんぶおじゃんになってしまったんですよ?
kijoni ōkegao saserareta seide kono kono natsuyasumino yotēwa zembu ojanni natte shimatta ndesuyo
Thanks to you getting him badly injured, all of that kid's summer plans came to nothing!