
from an ELEPHANT
that died of syphilis.
The Big Bang Theory Season 5, Episode 16

As a bit of an ELEPHANT seal buff...
The Big Bang Theory Season 8, Episode 23

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

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

ELEPHANT?
The Big Bang Theory Season 7, Episode 2