A replacement word for marijuana. Usually used when a parent or someone of authority is around and is often personified as a friend.
"Hello Robby, where have you and Dirk been all day?"
"Oh hi Mrs. Johnson, uuh...Dirk and I were just chillin with Ming."
"Ming? Who is that? I don't think I've ever met Ming."
"Haha, well he's a VERY good acquaintance of ours, I'm sure at some point you must have met him (coughcoughlikeincollegecoughcough)."
"I'm sorry what was that dear? Did you say something?"
"Oh, no ma'am I didn't, just got something caught in my throat. Anyway Dirk and Ming are waiting outside. We're gonna go for a walk. I just came in to grab a snack to bring with us."
"Ok dear, you three have fun!"
"Thanks Mrs. Johnson."