When a friend of the opposite sex (for heterosexuals) wears something slightly revealing or otherwise shows a bit of skin, and it would be rude or confidence destroying not to take a quick glance.
Claire just got changed on the bus, would have been rude not to give her a courtesy perv
An elderly homosexual pervert from Springfield, MA. He is obsessed with "pig fucking" and semen, he is very well-endowed, and he often calls random people in order to engage them in explicitly sexual conversations.
A word used by kinky people to show they acknowledge and respect the kinks of others. It is often used to mean that they play respectfully and are looking for more than a hookup.
Pervaste, the kinky person in me sees and honors the kinky in you