high-five

[ hahy-fahyv ]
/ ˈhaɪˈfaɪv /

noun

a gesture of greeting, good-fellowship, or triumph in which one person slaps the upraised palm of the hand against that of another.

British Dictionary definitions for high five

high-five
/ slang /

noun

a gesture of greeting or congratulation in which two people slap raised right palms together

verb

to greet or congratulate (a person) in this way