co-d
A Philadelphia slang term that is short for co defendant. Usually meant to signify a best or close friend; someone with whom you associate with frequently or share a strong bond, as in you committed a crime with this person and/or you were prosecuted together.
"Do you know Mike S?"
"Yeah! We both went to Scarborough High together. That's my co-d!"
"Yeah! We both went to Scarborough High together. That's my co-d!"