わだかまっちゃう
蟠っちゃう
wadakamacchau

Godan Verb (ru)
Godan Verb (u)

The completive aspect (contracted form) - indicates completion or regret of わだかまる

1. To be stuck; To be fixated; To be obsessed; To be rooted (figuratively); To be spoiled (of a child)

Completed Action
Colloquial
Usually Written in Kana