J9 in text often refers to the J9 Domestic Abuse Initiative, a program named in memory of Janine Mundy.
The J9 Initiative is named after Janine Mundy, a mother of two who was tragically killed by her estranged husband while he was out on police bail. Janine used to sign her text messages with "J9," and the initiative adopted this as its name to honor her memory. The J9 Initiative aims to provide safe places and support for individuals experiencing domestic abuse. It's not a general slang term, but rather a specific reference to this initiative.
In summary, if you see "J9" in text, it's likely a reference to the J9 Domestic Abuse Initiative.
