bounce off

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bounce off (third-person singular simple present bounces off, present participle bouncing off, simple past and past participle bounced off)

1. Used other than figuratively or idiomatically: see bounce,‎ off.
2. (transitive, idiomatic) To test (ideas) on someone.

   I have a plan to bounce off you.

   Let me bounce an idea off you.

3. To move away with a bouncing movement.

   She bounced off out of the room.

• bounce off the walls

• run by

• “bounce an idea off”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.