the act of hardcore jamming while raking leaves, alone and/or with friends.
i'm raking leaves..at the Scott's house! LEAF JAM! *unc* *unc* *unc* *unc* *unc*
The act of jamming it up, hardcore like, while racking the leaves with your buddies.
"Leaf Jam at the scott's house!"
(unc, unc, unc)