informal Understand a person’s real motives or character and thereby gain some advantage.
More example sentences
- If the cops have your number, you will be screwed no matter how law-abiding you are.
- Yep, there are plenty do-gooders are out there and they have your number, baby, trust me.
- They can't easily strike in the Middle East precisely because Syria, Egypt, Algeria, etc. have their number and have undertaken massive actions against them.
Definition of have someone's number in:
- The British & World English dictionary