hook, line, and sinker

US /hʊk laɪn ənd ˈsɪŋkər/
UK /hʊk laɪn ənd ˈsɪŋkər/
"hook, line, and sinker" picture
1.

por completo, totalmente, sin reservas

completely; without reservation or doubt

:
He fell for the scam hook, line, and sinker.
Cayó en la estafa por completo.
She believed his story hook, line, and sinker.
Ella creyó su historia por completo.