A website where people anonymously post their sick secrets to relieve themselves of the burden. It is a very entertaining website.
Guy 1: Hey I just read about this guy who had sex with his best friend's mom and got her pregnant on post secret...... Hey look! Its a guy from around our place. Mann thats one fucked up arse.
Guy 2: Err yeahh...um...wow what a sick guy.
-comes to realization-
Guy 1: You mother fucker!!