Based on the search results, "popped a nut" is a slang term that refers to ejaculation. It is not a medical term and should not be used in a medical context.

There is also a medical condition called a ruptured testicle, which is a health emergency that happens when the membrane holding the testicle breaks. This can occur with blunt force trauma to the scrotum or a penetrating injury. Symptoms of a ruptured testicle include extreme pain, swelling in the scrotum, nausea, and vomiting. Surgery is needed to fix the ruptured testicle.

In summary, "popped a nut" is a slang term for ejaculation, while a ruptured testicle is a serious medical condition that requires emergency treatment.