T-Rex: It occurs to me that I could make up my OWN hapax legomenon - a word that only appears in a single document - and then just refuse to reveal what it means! FOREVER!!

T-Rex: That would be SO grolitont!

Dromiceiomimus: I mean, I can get from context that it means "cool" or "rad" or at the very least "cromulent".
T-Rex: Ah, but can you? Because maybe I'm NOT in favour of doing what I'm doing and it actually means "bad", "heinous", or "un-un-UN-gnarly"!

Utahraptor: A word that could mean itself or its exact opposite? Be careful, T-Rex...

Utahraptor: ...you may think such a thing is impregnable, but it's literally not, and the whole thing is inflammable. You'll want to oversee this whole project to ensure there's no oversights in your oversight.

Narrator: PRESENTLY:
T-Rex: Language...!
T-Rex: *sigh*
T-Rex: Language was a mistake