ほそぼそ はなしちゃう
hosoboso hanashichau

Godan Verb (su)
Godan Verb (u)

The completive aspect (contracted form) - indicates completion or regret of ほそぼそ話す

1. To talk about (something) in a low voice; To murmur; To grumble; To complain (quietly)

Completed Action
Colloquial