to show characteristics of "Snookie" from the TV show Jersey Shore. Can be any characteristic, such as poofy hair, wild dance moves, hooking up with random guys in hopes of finding true love, etc.

Combination of Plastic and tan.

When someone obsessively tans their skin so much, they start to look fake like a burnt, plastic barbie doll

Plex-e-tan is an adjective used to describe skin that is often burnt orange, or extremely dark tan and leathery or extremely shiny from over oily.