
What was he, a bad ELEPHANT
who died and went to hell?
The Big Bang Theory Season 5, Episode 10

Yeah, he electrocuted
an ELEPHANT named Topsy
The Big Bang Theory Season 11, Episode 8

If I had an ELEPHANT
named Topsy,
The Big Bang Theory Season 11, Episode 8

And the answer was ELEPHANT.
The Big Bang Theory Season 4, Episode 24