かまえちゃう
kamaechau

Ichidan Verb
Godan Verb (u)

The completive aspect (contracted form) - indicates completion or regret of 構える

1. To prepare (and be stuck with it); To assume (and be stuck with it); To get ready (and be stuck with it); To brace (oneself) (and be stuck with it)

Completed Action
Colloquial