give someone five

idiomPart offive

give someone five — idiom

1. to slap someone's open hand as a greeting or to show that you are pleased about

1.idiom
Definition

to slap someone's open hand as a greeting or to show that you are pleased about something

Example

Aaron grinned and said, 'Give me five!' after Meera finished the puzzle in record time.

The whole team was giving each other five after winning the championship game.