When you obsessively lust after a best friend's girl or guy, mother, or sister, brother or father. Or a girlfriend or boyfriend's best friend, mother, father, sister or brother. any situation that could cause a scandal if uncovered.
1. Man, I cant stop pictureing my bro's girl naked. I want her sooooo bad, and I wanna take her from him. I know, I know, it's scandalust... but I cant help it. She makes me CRAZY! 2. I Cant believe you are with the hottest guy in school, but all you do is sit around and have erotic day dreams about his 50 year old dad! Girl you gotta bad case of scandalust.