The word is Polish.
See? Look.
The Big Bang Theory Season 6, Episode 4
Would you like me
to play some Polish music
The Big Bang Theory Season 7, Episode 23
Who, although she was a naturalized
French citizen, was Polish by birth!
The Big Bang Theory Season 6, Episode 4
Excuse me, the word is POLISH.
The Big Bang Theory Season 6, Episode 4
...a Polish astronomer. Finally, if that
wasn't enough, which it should've been...
The Big Bang Theory Season 6, Episode 4