I believe this is an extension
of the death METAPHOR.
The Big Bang Theory Season 2, Episode 8
Wow, was that your first ever
sports METAPHOR?
The Big Bang Theory Season 12, Episode 10
Luckily for you,
that's where the METAPHOR ended.
The Big Bang Theory Season 1, Episode 15
It's a sports METAPHOR.
The Big Bang Theory Season 2, Episode 7
...the terms of your METAPHOR
by acknowledging her existence. I'm out.
The Big Bang Theory Season 2, Episode 8