a D&D monster book so bad it made Gary Gygax complain about random encounter tables. That's the D&D equivalent of making Cookie Monster sick of chocolate chips or Stephen Hawking sick of galaxies or orbits or whatever it is he likes.
No, SRSLY, a) one of my favorite RPG bestiaries ever, just full of fucked-up weirdness, and b) all those "WTF, D&D" articles are fucking hilarious. The World of Synnibar one is top-notch. (And yes, I own a copy. Some day I will run that shit.)