It comes from the words scrotum and protocol.
1. A set of regulations or procedures that a man has regarding his
testicles.
2. The list of do's and don'ts
concerning the
testicular region.
If you're gonna
suck my dick, you have to stroke my balls. It's my standard scrotocol.
You don't kick another man
in the nuts unless
you're a pussy. That is simple scrotocol.