
...which I think we all know
is a POPULAR euphemism...
The Big Bang Theory Season 3, Episode 7

and in the POPULAR board game
"Hungry Hungry Hippos,"
The Big Bang Theory Season 7, Episode 12

And for those of you who were POPULAR
in high school, it's over. Sorry.
The Big Bang Theory Season 8, Episode 22

You better watch that attitude, buddy.
You're dating the POPULAR girl now.
The Big Bang Theory Season 8, Episode 2

Some POPULAR early main ingredients
included blueberry, anchovy...
The Big Bang Theory Season 3, Episode 17