Lyric discussion by nonapejase 

Cover art for Squonk lyrics by Genesis

Mike Rutherford was inspired by a book of folklore. He has confirmed this in interviews. It even came up in Q Magazine in November 1994 when a reader wrote in about this song and Steely Dan's Any Major Dude Will Tell You. They contacted the man himself, and the book is believed to be Fearsome Creatures of the Lumberwoods by William T Cox.