
Hi, you're on Fun with Flags.
The Big Bang Theory Season 9, Episode 15

Like that Howard,
always making FUN of you.
The Big Bang Theory Season 11, Episode 10

RAJESH:
Ooh, FUN. I love prom.
The Big Bang Theory Season 6, Episode 18

Oh, I'm just having FUN.
The Big Bang Theory Season 9, Episode 11

It said right there on the invitation,
"Buckle up for FUN!"
The Big Bang Theory Season 10, Episode 19