one-liner

one-liner
ˌone-ˈliner noun [countable]
a very short joke or humorous remark
     

THESAURUS

   ▪ joke a funny story that you tell people to make them laugh: We all sat around telling jokes. | Have you heard the joke about the man who found a frog in his soup?
   ▪ funny story a short story that someone tells to make people laugh: He was one of those guys who are good at telling funny stories at dinner parties.
   ▪ gag a short joke, especially one told by a professional entertainer: He’s a great comedian, with plenty of good gags.
   ▪ one-liner a very short joke or funny remark: There are some memorable one-liners in the film.
   ▪ wisecrack a funny remark or reply, especially one that is said in a very quick and clever way: It’s a comic masterpiece, packed with classic wisecracks.
   ▪ pun (also play on words) a joke made by mixing up two different meanings of the same word, or two words with the same sound: a pun on the words ‘bear’ and ‘bare’ | The title of the book is a witty play on words. | Shakespeare used a lot of puns for comic effect.
   ▪ quip written something funny and clever that someone says: He made some friendly quip about hair loss, and everyone laughed.