しゃちほこばったそうだ
鯱張ったそうだ
shachihokobatta sōda

Godan Verb (ru)
Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of しゃちほこばる

1. Apparently, someone did something audacious.; It's said someone acted boldly/recklessly.

Past/Perfective
Hearsay Evidence
Usually Written in Kana