かっちゃう
noshi kakacchau

Godan Verb (ru)
Godan Verb (u)

The completive aspect (contracted form) - indicates completion or regret of 伸し掛かる

1. To reach out; To stretch out (a hand/etc.); To offer (help/assistance); To overextend oneself; To be about to reach out/offer; (Regretful) I went and... (offered/reached out)

Completed Action
Colloquial