It's when they've got ARMOR on.
Game of Thrones Season 2, Episode 2
Yes, wearing Renly's ARMOR.
Game of Thrones Season 5, Episode 6
Oh, and how much did your father spend
on that ARMOR of yours?
Game of Thrones Season 1, Episode 5
But it is time to put aside
your ARMOR and your sword.
Game of Thrones Season 1, Episode 8
He'd never worn this ARMOR before.
Game of Thrones Season 1, Episode 5