To Jocesomeone means to talk to them through out their stay in jail. The Jocer expects the Jocee to stay loyal and not cheat on them - hold them down .
"Girl, I heard that Nisha been jocing RayRay ass in jail."
"Mhmm tea bitchh , I hope she don't mess over him ."
Technique used mainly by males to sleep in the same quarters (Bed, Couch, etc.) without having the threat of gay/awkward encounters. The two will lay in opposite directions (feet next to head) mirroring the position used in the movie Willy Wonka and the Chocolate Factory by Grandpa Joe and the other geriatrics in that beat on shit-hole house.
I was Grandpa Joeing on the couch with Raff yesterday watchin golf
Yo I dont have anywhere to sleep, you mind if I Grandpa Joe with you.