Pervoscopes 

Another term for sunglasses, as no one can see where your eyes are looking leaving you free to perv away!

"Next time I'm at the pool I am soooo taking my pervoscopes with me!"

Pervoscopes by Ryno_T May 1, 2017

Pervascope 

A type of telescope. It's basically one half of a pair of binoculars, designed to be used like a telescope for the same purpose.
Generally used by parents watching their kids play in a park from a long distance. However, it could be used for spying on people discretely, maybe checking out girls from a distance.

Two guys walking down a beach:
Guy 1: Yo, you see those chicks over there? You think we should go up to them?
Guy 2: I don't know, let me investigate further with my trusty pervascope!
(He takes a look down range.)
Guy 1: Well?
Guy 2: She has some nice titties...

Pervascope by /_7 December 17, 2008