TV series example of the word

The Big Bang Theory Season 5, Episode 5
Wil Wheaton is Sheldon's mortal enemy.

The Big Bang Theory Season 5, Episode 5
you really have a mortal enemy?

The Big Bang Theory Season 5, Episode 5
From this moment on, you are my mortal enemy.

The Big Bang Theory Season 1, Episode 6
A hobbit is a mortal, halfling inhabitant of Middle-earth...

Westworld Season 2, Episode 6
of having arrows shot at their predominantly mortal heads.