and in the POPULAR board game
"Hungry Hungry Hippos,"
The Big Bang Theory Season 7, Episode 12
...in the POPULAR online game
"Words With Friends."
The Big Bang Theory Season 6, Episode 6
While all the POPULAR kids are off doing...
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
but home births
are very POPULAR these days.
The Big Bang Theory Season 10, Episode 11