It's a sports METAPHOR.
The Big Bang Theory Season 2, Episode 7
Yeah, me, too. I was stuck for a METAPHOR.
The Big Bang Theory Season 9, Episode 12
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
I believe the appropriate METAPHOR here
involves a river of excrement...
The Big Bang Theory Season 2, Episode 8