Someone who tries to show off all their name brand stuff even though more than half the things they are wearing are off-brand

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

Autistic fuckhead trying to show off to build a reputation.

A mystical creature that lives in the land of mathews. It lives off of protein and greek yogurt. In its spare time it enjoys working on the tumors in its arms. It has been known to download from Hungarian websites and play computer games.

Groovy kid approx 5 foot tall with various additional features. Sells himself.