negative schwing
When a female is so unnattractive that the male anatomy actually attempts to hide itself to avoid detection.
T-roy: Tony, your girlfriend looks like Garth from Wayne's World!
Tony: So?
G-Lo: Well when she was at the bar last night, she was causing much negative schwing!
Tony: So?
G-Lo: Well when she was at the bar last night, she was causing much negative schwing!