Most common in video games, Super Armor is armor that will prevent you from flinching and being knocked back during an attack. In most games with super armor, you will still receive damage but won’t flinch or be knocked back.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.