TV series example of the word

The Big Bang Theory Season 7, Episode 6
♪ A cathode ray tube without an electron gun ♪

The Big Bang Theory Season 1, Episode 4
- A death ray? - Well, that's what he called it.

The Big Bang Theory Season 1, Episode 4
Wouldn't have been any ass-kickings if that stupid death ray had worked.

Breaking Bad Season 3, Episode 11
...teenagers running around with ray guns, right?