cuffer
/ˈkʌfər/Definitions
1. noun
A person who cuffs or punches someone, especially as a form of playful or sporting punishment.
“He was known as a cuffer on the rugby team, always ready to dish out a playful cuff to his teammates.”
2. verb
To hit or punch someone lightly, often as a form of playful punishment.
“The coach cuffed the player lightly on the shoulder for not following the rules.”