shake on it
English edit
Etymology edit
Refers to the use of a handshake to confirm an agreement.
Verb edit
shake on it (third-person singular simple present shakes on it, present participle shaking on it, simple past shook on it, past participle shaken on it)
- (informal) To agree by shaking hands; to close a deal.
- I'll bring the contract tomorrow, and if everything looks good, we'll shake on it.
- Let's shake on it!