If Sheldon's testosterone dipped,
he'd become a BUTTERFLY.
The Big Bang Theory Season 9, Episode 21
That's what you said about the
BUTTERFLY pavilion at the zoo.
The Big Bang Theory Season 12, Episode 6
Hello, little BUTTERFLY. Mmm.
00:5
00:00:21,356 --> 00:00:23,108
What's your name-- Oh!
The Big Bang Theory Season 9, Episode 20
I ate a BUTTERFLY.
The Big Bang Theory Season 5, Episode 18
...I have burst forth
as the world's smartest BUTTERFLY.
The Big Bang Theory Season 8, Episode 1