
There are dozens of railroad crossings
you have to blow the WHISTLE for.
The Big Bang Theory Season 10, Episode 15

and gave him that WHISTLE.
The Big Bang Theory Season 7, Episode 24

They let me
blow the WHISTLE, Leonard.
The Big Bang Theory Season 5, Episode 23

Is it a high-frequency WHISTLE?
The Big Bang Theory Season 2, Episode 10
![[TRAIN WHISTLE BLOWS]
[TRAIN WHISTLE BLOWS]](https://content2.mcqstudy.com/ss/bb-2-4-00:32:28.029.jpeg.webp)
[TRAIN WHISTLE BLOWS]
Breaking Bad Season 2, Episode 4