The phenomenon where, in colder winter months, vasoconstriction leads to an average of 30% less girth in the male genitalia. This is due to the body trying to conserve heat, thereby shutting down certain blood pathways to stay warm; the penis being one of them...
Guy 1: Polar vortex hit this week, and I swear my dick shrunk like a half inch in diameter. I don't even want to show my girlfriend...
Guy 2: Sounds like a case of Winter Penis
Guy 2: Sounds like a case of Winter Penis
by Rev. Johnny Blumpkin February 4, 2019