An acquired belief that an individual or group of people has a reputation of raping others at a party, a dark alley, or in their mom's basement; usually this is done due to an individual's small-penis complex or just lack of game with the opposite (and sometimes the same) sex.
1. "Hey, do you want to go to a party at Sigma Nu?"
'No way in hell! Those guys have a high rapeutation on campus'
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.