Internal jugular.
Money Heist Season 1, Episode 5
No, he cut open a tauntaun and used
its INTERNAL body heat to warm him up.
The Big Bang Theory Season 2, Episode 23
If you want, I can call Internal Affairs,
Money Heist Season 1, Episode 11
a record of the INTERNAL process
of their cognition.
Westworld Season 2, Episode 9
At best you can say, "Hey, look, my idea
has an INTERNAL logical consistency."
The Big Bang Theory Season 1, Episode 3