っちゃう
suriyocchau

Godan Verb (ru)
Godan Verb (u)

The completive aspect (contracted form) - indicates completion or regret of 擦り寄る

1. To fawn; To suck up; To get close (with ulterior motives); To cling; To be overly friendly (and possibly insincere)

Completed Action
Colloquial