backslap
verbUK /ˈbæk.slæp/
US /ˈbæk.slæp/
To hit someone on the back with your hand.
He gave his friend a friendly backslap after the game.
OTHER MEANINGS
2. To greet someone in a loud, cheerful way.
The coach backslapped every player as they came off the field.
3. To praise someone too much in order to get their favor.
The salesman backslapped the manager to win the deal.
4. A loud, friendly hit on the back.
She felt a warm backslap from her old classmate.