jump in with both feet

jump in with both feet (third-person singular simple present jumps in with both feet, present participle jumping in with both feet, simple past and past participle jumped in with both feet)

1. (informal) To commit oneself wholeheartedly.

• take the plunge

• “jump in with both feet”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “jump in with both feet”, in Collins English Dictionary.
• “jump in with both feet”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.