TV series example of the word

The Big Bang Theory Season 3, Episode 3
Get the mean little skull, and I'll see if I can make him smile.

Breaking Bad Season 3, Episode 11
I guess the cow skull pictures were cool, but a door?

Breaking Bad Season 2, Episode 7
you crushed their skull with an ATM machine.

Game of Thrones Season 3, Episode 9
Old Nan said they turn your skull into a cup

Game of Thrones Season 6, Episode 9
Mance didn't have demons in his skull.