TV series example of the word

Breaking Bad Season 3, Episode 10
What's up with that? I mean, when I was coming up, it was just "possum."

The Big Bang Theory Season 7, Episode 12
my mother called me her little possum.

The Big Bang Theory Season 7, Episode 12
Or just keep dating the possum.

The Big Bang Theory Season 10, Episode 11
Or is it like a possum in the walls kind of thing?

The Big Bang Theory Season 8, Episode 3
You know, it's like when I thought there was a possum in my closet.