I haven't proffered one of these for a while..

flabuginous: something which is deceptive or fraudulent

from Bird's Grandiloquent Dictionary.
I can find it nowhere else, and the def'n is suspect, presented as a thing, since the form is obviously adjectival. (you'd expect it to be "relating to deception or fraud", or the like.)

-joe (I carry no badge) friday