the state of being in someone's head or business.
Jimmy's so in your Kool Aid and you don't even know it yet.
An altertate term for "I agree to that", or "I'll follow you."
It comes from the religious fanatic Jim Jones and his group of followers that drank poisoned Kool-Aid and died after being told that it would take them "heaven".
Ryan - "Eh, I gotta run out to the store, you wanna come?"
Ben - "Yea, I'll drink your Kool-Aid."
Someone who has no backbone no courage no heart and avoids Conflict at all cost
You ain't going to do nothing to me your heart pumps Kool-Aid