The balls that women freeze off when they climb into cold waters. Women don't have testicles so we need something to freeze off besides our breasts because that would be
saddening for both sexes. The moment when you get your groin area
submerged into the water and you must stop and breath those are your
theoretical testicles falling off.
When she
cannon balled into the water, you could see her
theoretical testicles shrivle and fall off.