A Philadelphian pronunciation of the word "joint."
This now means almost any
thing, usually used in place of an object, the name of which either can't be currently remembered or needs to be obscured. It conforms to a similar definition of slang in the word "
piece", although, in reference to
weed, a
joint is a
joint, a
piece is a
piece.
It should be noted, as it is
here many times, the word has come to be used in slang through African-American culture, mostly from use in the East Coast, and generally referring to artistic ventures (a
movie,
song, or some other
project).
Examples I've heard in recent memory:
"I wanted to get the last few episodes off you, so make sure you bring that jawn."
"He shows me he got that jawn in his coat, and he says 'stay out of the street, baby boy, we got 800-pound gorillas running around here.'"
"She gonna break your jawn right off."