
The word is "POPULAR."
The Big Bang Theory Season 8, Episode 8

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

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

if they have POPULAR support,
The Big Bang Theory Season 12, Episode 18

That can't be very POPULAR.
The Big Bang Theory Season 3, Episode 2