The original tale is by Alan B. Combs. It led to a pun cascade on PUNY.

Folk-monsters are a part of the underculture in many countries. Fear of bogeymen, vampires, werewolves, dervishes, zombies, and other such unfriendly life forms (speaking loosely) is part of being human. I have recently become familiar with a fairly well-described Hispanic entity. This fearsome creature is a modern affliction, combining the very worst aspects of military helicopters with a peculiar abuse of goats. Found mostly in Mexico and Puerto Rico, this is, of course, the dreaded choppercabra.

Then you cross him with a poisonous snake and get the choppercobra.

–Deann Alford

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No. That’s what Siamese twin biker chicks wear to keep their boobs from sagging.

GARY HALLOCK

Well I’ve seen some stretches in my time and that definitely ranks; reminds me of the small police floating aircraft — the chopper copper.

Joseph Harris