TV series example of the word

The Big Bang Theory Season 5, Episode 12
for being overly fond of koala bears.

The Big Bang Theory Season 5, Episode 12
She knows my koala face.

The Big Bang Theory Season 5, Episode 12
We both know that's your koala face.

The Big Bang Theory Season 7, Episode 10
of a koala and an otter

The Big Bang Theory Season 12, Episode 4
Was that the imaginary talking koala?