leap in

leap in

1. To jump into something or some place. I leapt in the air to try and catch the ball. Before you leap in the driver's seat and start cruising the streets, make sure you do your normal safety check that you learned during your driving lessons.
2. To suddenly join an in-progress activity. They were already halfway through the development cycle with the project when I joined the company, so I just had to leap in and learn on the fly. Leap in anytime you feel like playing!
See also: leap
Farlex Dictionary of Idioms.

leap in

v.
1. To spring or bound in or into something: I couldn't resist leaping in the big pile of raked leaves on the ground. The couch looked so comfortable that we just leapt in.
2. To join some activity that is already in progress: I leapt in the game they had been playing. Whenever you feel like joining us, just leap in!
See also: leap
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • leap out
  • cruise through
  • cruise through (something)
  • jump in
  • work oneself up to something
  • leap from (something) to (something)
  • jump from (something) to (something)
  • jump from to
  • dive into
  • dive into (something)
References in periodicals archive
The vessel is the third of the Delhi class of guided missile destroyers and represents the Indian Navy's quantum leap in technology and capability in the new millennium.
The 6,800 tonne warship is a technology demonstrator and will showcase a giant leap in shipbuilding technology in the country.
POORLY EXECUTED: Captain Kirk LEAP IN THE DARK: Mr Spock
However, most of the leap in profits in the second quarter came from licensing characters for film merchandise tie-ins.