Hold on to your
conductor's HAT.
The Big Bang Theory Season 7, Episode 15
And a pointy HAT
sticking out of your eyeball.
The Big Bang Theory Season 8, Episode 22
He's wearing a HAT,
glasses and a red-striped shirt!
The Big Bang Theory Season 6, Episode 4
It's also a HAT.
The Big Bang Theory Season 11, Episode 13
- Now, hold on to your HAT.
- Oh.
The Big Bang Theory Season 6, Episode 4