A select few get it
Else clues• Bit of humor most people can't get
• Clique wit?
• Gag meant for a select few
• Humor that could be hard to get
• It gets laughs from just a few people
• It may be hard to get
• Private gag
• Private humor
• Private jest
• Some people can't get it
• What only a select few might get
• You might not get it