ball sweat vinegar
The tangy juices that accumulate on the testicles when one has not bathed for a few days or has had vigorous sex and fallen asleep without cleansing the nads.
Jimmy Bobby: What did you make that dang face for?
Jimmy Bobby's sister: Your nuts taste like ball sweat vinegar! Worsh your ass or Ima puttin ma cloths back on!
Jimmy Bobby's sister: Your nuts taste like ball sweat vinegar! Worsh your ass or Ima puttin ma cloths back on!