It's actually YELLOW discharge.
The Big Bang Theory Season 11, Episode 14
[YELLOW MAN'S "ZUNGGU-
ZUNGGUGUZUNGGUZENG"
PLAYING OVER SPEAKERS]
Breaking Bad Season 2, Episode 10
I'm just saying it's pretty lame
that he can be defeated by the color YELLOW.
The Big Bang Theory Season 2, Episode 19
No red and YELLOW,
no red and YELLOW.
The Big Bang Theory Season 8, Episode 22
...and told him it's against the law
to have YELLOW cake uranium in a shed.
The Big Bang Theory Season 1, Episode 4