👉 "Square lipped" is a funny but not-so-happy descriptor for something that's got a mouth shaped like a little square, almost like a cartoon character's lips. Imagine a person who can only smile when someone asks them to, and their cheeks are perpetually flushed from trying to hide their true, toothy grin.
Here's an edgy example sentence: "The square-lipped baker's croissant was so buttery, it could have squashed a pigeon."