Here's why:
* Literal meaning: "Goggle-eyed" doesn't literally mean someone has goggles on their eyes.
* Figurative meaning: It describes someone with wide, bulging eyes, usually due to surprise, fear, or excitement.
While not a metaphor or simile, "goggle-eyed" is still figurative language because it uses a non-literal phrase to create a vivid image in the reader's mind.