
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

Yeah, me, too. I was stuck for a METAPHOR.
The Big Bang Theory Season 9, Episode 12

I believe the back-scratching METAPHOR
describes a quid pro quo situation...
The Big Bang Theory Season 2, Episode 16

I believe the appropriate METAPHOR here
involves a river of excrement...
The Big Bang Theory Season 2, Episode 8