You got no jam def.
I just found this https://www.urbandictionary.com/define.php?term=You%20got%20no%20jams
Its so funny and I thought I could share it. They have their own def. in urban dictionary (RM and Jimin)
By the way, i found it in https://www.koreaboo.com/lists/jokes-just-bts-fans-understand/
Try to understand all the jokes, but I'm sure most of us will (xD)
I also found it here https://hinative.com/en-US/questions/1176687