It is where you masterbate and when you cum you smash the cum with the hammer which gets it all over your face and then you use the sickle to “cut off” the cum from your dick
When one erect circumcised penis and one uncircumcised erect penis lock in, while the third erected optional dick grips the shaft for a whack repeatedly.
Two guys were docking, and panic set in they call extra help to hammer dock them together which made it hammer docking and still clocking.