Old definition: A social gathering intended for various couples to pair off and dance.
New definition: A social gathering specifically designed for various couples (male & female) to hook up and engage in sexual activities,ranging from a couple to a group of participants.
Aww man,my girlfriend left me!
You look like you could use some fun,drop by the swingers club,they're serving just what you need.
What do I do?
Just show up and mingle with the crowd,someone will invite you to join them.
Nah,normal people looking for some fun.