No, that's why I said if its obvious full breeding is taking place....i.e. if i notice they have tails twined for awhile, then get a good look and see actual penetration, then its locked up.
I would not say snakes twisted around each other is locked up. That doesn't make sense. Locked up means male is IN "locked" in the female to me. You could toss it back and forth all day if a snake is actually inside another one. It's all a guess unless I SEE penetration.