A fork of Rural Dictionary
An urban term (used mostly in the midatlantic area-originated in Delaware) used to describe laughing or shared laughter. To bag up, bagged up, etc.
That guy was walking down the street and ran into a pole, and we started baggin' up!
Laughing out loud at something.
I've never heard this outside of Delaware.
"I started baggin up when I heard my teacher's name was Mr. Doody"