
I don't care if Richard Feynman
was a PURPLE leprechaun
The Big Bang Theory Season 5, Episode 18

And he tried to deny it,
but his teeth were all PURPLE.
The Big Bang Theory Season 9, Episode 12

Yeah, and this one
won't stain my teeth PURPLE.
The Big Bang Theory Season 10, Episode 19

Listen, I got to level 25
and reached Purple Lotus Swamp, right?
The Big Bang Theory Season 2, Episode 3

Penny meant if he were
a PURPLE leprechaun.
The Big Bang Theory Season 5, Episode 18