So my buddy and I are digging a few post holes today to fix this section of fence. Of course it's tiring and we keep measuring the hole, diameter as well.
Eventually I say it 8 more inches,l about the length if a black mans shaft, I say.
We dig some more and I say, 6 inches to go, two china men's shafts.
At that point it dawned on is that we could basically do most guesstimating using these two forms of measurment.
A half china man shaft is 1"-2"
A half black shaft is 4" -6"
Full china man 2"-4"
Full black 8"-12"
I know it's gay but its a really easy system