Keeping some features that are associated with its youthful state, even while the animal itself has reached its mature state. This term is often used to describe the ability of some animals to reach sexual maturity while still larvae.
It also applies to our modern obsession with hairlessness, big eyes, and youthful clothing.
When you’ve seen either Top Gun or Top Gun: Maverick once or many many times and you now or still have have the dying urge to see it again. It’s a fatal disease that usually takes around 3-4 months to take your life after seeing a Top Gun movie.