pentacorn 

The legendary variant of a unicorn with five horns. Nobody knows if it really exists.

"You know pentacorns? Do you think they really exist?"
"Wait, pentacorns? Wouldn't they be called quinticorns?"
"Uhhh..."

pentacorn by UrbanMelon8846 December 3, 2021

Permacorn 

When someone does something so corny that they are permanently corny, or on the cob.

Bro, that's entering permacorn territory, you might wanna calm down.

Permacorn by Jeremiah Whittaker Kingsley December 12, 2024