Sheldon gave me a brain teaser.
It's kind of FUN.
The Big Bang Theory Season 11, Episode 12
Relax.
They're just having FUN.
The Big Bang Theory Season 12, Episode 20
and then you are good to go.
Fun time.
The Big Bang Theory Season 5, Episode 18
It should be something FUN.
The Big Bang Theory Season 1, Episode 16
the bar looks like FUN.
The Big Bang Theory Season 7, Episode 1