[TRIVIA]
The “You have no Jams” means that the joke isn’t funny. Jam is short for the Korean Word 재미(Jaemi) which means FUN, the whole saying would be “너 재미없어(Neo Jaemi Eobseo)”, so in other words, J-Hope says “Jimin, you are very no fun.” and RM says “Jimin you have no Jams” meaning “You are not funny.” So everytime you say “Jimin has no jams.” you are saying “Jimin you are not funny.” 😉©daily yoongi