さわっちゃう
sashisawacchau

Godan Verb (ru)
Godan Verb (u)

The completive aspect (contracted form) - indicates completion or regret of 差し障る

1. It's a bit complex to translate concisely as it's a grammatical function *applied* to a word. Here's the core meaning, applied to a hypothetical word "doing":; ; To be a hindrance; To be inconvenient; To cause trouble; To be awkward; To interfere

Completed Action
Colloquial