If Sheldon's testosterone dipped,
he'd become a BUTTERFLY.
The Big Bang Theory Season 9, Episode 21
"Look, Mommy-- a BUTTERFLY."
The Big Bang Theory Season 5, Episode 1
That's what you said about the
BUTTERFLY pavilion at the zoo.
The Big Bang Theory Season 12, Episode 6
I ate a BUTTERFLY.
The Big Bang Theory Season 5, Episode 18
Is that a...
a BUTTERFLY?
Westworld Season 2, Episode 5