When you hear
a songbird's WHISTLE, you come.
Game of Thrones Season 3, Episode 9
They let me
blow the WHISTLE, Leonard.
The Big Bang Theory Season 5, Episode 23
and gave him that WHISTLE.
The Big Bang Theory Season 7, Episode 24
Oh, danger WHISTLE.
The Big Bang Theory Season 8, Episode 19
I'll be blowing the WHISTLE.
The Big Bang Theory Season 10, Episode 15