There are a few ways to go about this, but the most efficient is to get directly behind your mate while executing the Rusty Chainsaw. Insert Anal Beads into your partner's stink hole. Place a blindfold over your eyes. Grab the end of the bead strand and pull outward fast in one quick motion. When last bead pops out, so too will a giant shit slug or greasy wet buckshot, which, based on good positioning, should hit you squarely in the chest. A real man takes it to the head.
Man, Rhonda got me good with a Rusty Firing Squad. I'm still picking peanuts out of my bellybutton.