That can't be very POPULAR.
The Big Bang Theory Season 3, Episode 2
Popular choices include tea,
coffee, cocoa.
The Big Bang Theory Season 2, Episode 13
You met her at Pasadena's most POPULAR
Irish watering hole, Lucky Baldwin's...
The Big Bang Theory Season 4, Episode 6
...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