
Warlord beats troll, troll beats ELF,
ELF beats water sprite...
The Big Bang Theory Season 3, Episode 5

What an ELF I would have made.
The Big Bang Theory Season 4, Episode 20

Don't ask me, a little ELF did it. Ha, ha.
The Big Bang Theory Season 6, Episode 6

Keebler ELF?
I got a Keebler ELF right here.
The Big Bang Theory Season 1, Episode 16

I'm a rogue knight ELF.
The Big Bang Theory Season 1, Episode 3