ならしちゃう
均しちゃう
narashichau

Godan Verb (su)
Godan Verb (u)

The completive aspect (contracted form) - indicates completion or regret of ならす

1. Do/did equalize; Do/did level; Do/did make uniform; Do/did finish (equalizing/leveling)

Completed Action
Colloquial
Usually Written in Kana