A fork of Rural Dictionary
A saying used when you want to tell someone who's interested in your girlfriend/boyfriend to back off. Using this saying means not only 'back off' but that the target is your property.
Yo, I see you flirting with my man over there. You need to get off my Kool Aid. He's mine so find your own.
Leave me alone
Get out of my face
Rufus kept trying to get Emma's number so she told him to "get off my kool-aid"