It's a WAVE!
The Big Bang Theory Season 3, Episode 14
Yes, it's the apparent change
in the frequency of a WAVE...
The Big Bang Theory Season 1, Episode 6
Want me to WAVE to him for you?
Breaking Bad Season 5, Episode 13
If you look at Huygens, light is a WAVE,
as confirmed by the double-slit experiments.
The Big Bang Theory Season 1, Episode 1
I built a cobra WAVE.
You want to do that?
The Big Bang Theory Season 11, Episode 13