reipu-me レイプ目

In Japanese, reipu-me レイプ目, "rape eyes," also called utsuro-me 虚ろ目, "vacant eyes," or maguro-me マグロ目, "tuna eyes," refer to the vacant, spark-less, dead eyes often drawn in traumatized characters in anime.

Anime: Goblin Slayer, Goburin Sureyaa ゴブリンスレイヤー (Episode 1)

In spite of the name, a character with "rape eyes" doesn't necessarily have to have been raped. They could've been traumatized for some other reason.

Anime: Kono Subarashii Sekai ni Shukufuku wo! この素晴らしい世界に祝福を！ (Episode 5)

• After being useful for once, Aqua becomes traumatized.

And when I say "some other reason" I really mean literally any other reason.

Anime: Saki: Achiga-hen - Episode of Side-A 咲-Saki- 阿知賀編 episode of side-A (Episode 3)

• Shizuno is temporally traumatized after losing really badly in mahjong.

At which point reipu me is more like a trope than anything else.

Manga: Goblin Slayer, Goburin Sureyaa ゴブリンスレイヤー (Chapter 6)

• naremasu yo
  慣れますよ
  [You] get used to [it].