jump in with both feet

jump in with both feet

To begin or undertake something quickly, enthusiastically, and without trepidation. I know you're nervous about starting school, but you just need to jump in with both feet and do your best!
See also: both, feet, jump
Farlex Dictionary of Idioms.

jump in with both feet, to

To enter wholeheartedly. This phrase is actually redundant, since to jump means to leap with the feet together as opposed to hopping on one foot. A twentieth-century Americanism, it may allude to jumping into a pool, rather than testing the water with one foot.
See also: both, jump
The Dictionary of Clichés by Christine Ammer
See also:
  • jump in feet first
  • jump in with both feet, to
  • dive in
  • dive in with both feet
  • have (one's) heart in (something)
  • have your heart in
  • Go for it!
  • hate (someone or something) like sin
  • hate like sin
  • going great guns