K for K
A fancy way of saying you owe someone cash for letting you try their Ketamine. In Greece, you might also have to give them a blow job just to stay in the 'A' class. That’s called Kolos for Ketamine.
K for K, bro. I’m paying you back after this. You’re welcome.
You took my batch and I took yours. K for K, no questions asked.
I’ll do your K for K and your blow job, just don’t make me take your batch again.