When having intercourse with a female, doggie style, the male flaps his arms, caws vigorously in a bird-like fashion, proceeds to break hand flap and deliver single hand strike to right buttock, followed by equivocal strike to left buttock. Upon completion, male disengages, announcing "DOUBLE BIRD STRIKE!" Shortly thereafter, male climaxes upon the female's posterior, exclaiming "SPLASH DOWN."
"Dude, I double bird struck the shit out of that chick..."
Double Bird Strike