Anyone from Oswego, NY who has experienced a winter there probably has experienced this. It happens when you're just trying to walk to class or some other place, and then the massive lake effect wind coming off of Lake Ontario hits you so hard that it knocks you down. It can also be considered an Oswego blowjob when this happens and you are actually giving/receiving a blowjob

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower