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."

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.

Aviation term for when a bird flies into two engines of a jet plane, or else, when two birds fly into one engine.