(n). Made by combining the words "Pert" like the shampoo and the letter "z".
Characterized: short, tan, overly sassy with a knack for slightly abusive behavior and an over-aggressive attitude.
One may be identified by a "tough" facade, but really just slaps guys around a lot.
Girl: "Don't mess with me! I'm like Pertz! I'm 'Shampoo-Z'!"
Guy: Really? Really now? What are you going to do? Slap me!?
Girl: "Haha Shut Up!"