The enclosed space from which a drug dealer sells their marijuana, which tends to be very low quality and overpriced. This tends to be a dorm room or a house found on or around a college campus.
Carl: Hey man you have any bud?
Jeff: Oh you know I got that piffy, step into my Joffice.
The word given to a male inner city worker who has had too many drinks at lunch.
"I'm just going back to the joffice to get my bag."
"Don't you mean office? Have you been drinking?"