Define Bye-bye Arm Meaning

Bye-bye Arm
When one waves hello or goodbye, the fat on their arm may appear to flap in a waving matter as well. Most commonly seen on obese people and mothers.

Soccer mom: "Have fun at soccer, Jimmy! I love you!"

Jimmy: "Okay mom, I love you too!"

Friends: "Man. Jimmy, your mom has some serious bye-bye arm."
By Drusie
Bye Bye Arms
the back of your upper arms that keep swinging after your doe waving good bye becuase they are so fat & n muscle is there

"I hate My Bye Bye Arms"
By Lily