When a friend of yours does something stupid or funny yet uncalled for , there by making the situation funny. Your friend must extend his hand , and you must slap either gently or hard. Note if you slap it harder then required then thats hands on you and he can slap your hand.
Tim: dam look at that gurl she looks so good ;)
Bret: dude thats ma ex that i just broke up with , thats hands man
Tim: alright (extends his hand)
They then laugh about stupid shit and if somethen stupid gets said thats hands