Serve ball check
When, before participating in a threesome, you have to discard a few people so it doesn't turn into an orgy. You have a quick look at them and select the fittest.
- So, did you fuck all of them?
- Nah, I serve ball checked them quick and tossed the ones who were still unnaked
- Nah, I serve ball checked them quick and tossed the ones who were still unnaked