A fictional creature from the book Bogwoppit, published in 1978 by the author Ursula Moray Williams. The book "concerned the problems of taming the mysterious and mischievous bogwoppits that the young heroine discovers in the marsh."*
See:
*= from the Guardian obituraries
Also, for the author, see Wikipedia
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.