
I think, "A horse goes into a bar, bartender
says, 'Why the long face?"', that's a JOKE.
The Big Bang Theory Season 6, Episode 23

Well, I was thinking about
Sheldon's little JOKE
The Big Bang Theory Season 5, Episode 20

That is the worst JOKE I ever heard.
Game of Thrones Season 6, Episode 8

It's a JOKE.
The Big Bang Theory Season 6, Episode 18

Other scientists think I'm a JOKE.
The Big Bang Theory Season 6, Episode 22