about 25lbs per square inch must be applied at exactly a 48 degree angle to pop ones testicle. i hope this helps you in your future endeavors. :) An ex-girlfriend of mine once /tried/ to pop mine by stomping on them -- it felt like they were about to burst, but they never actually did. She weighed about 130 lbs, so I'd guess the average guy's nuts could take at least that much before they're turned into goo.