J is a shortened form of Jax.
Verb Form: Holy crap did he just do that to me? Im gonna jax him up.
Adjective form: Wow this homework is soooo J.
Swearing Replacements: WTJ=Wat the Jax!!! OMJ=Wat the Jax
Strong sense of loyalty and morals, will do anything for his family.
"Lets go have a jax of a time."
"Did you see that girl?"
"She looked like a Jax.