- Adjective

1. Shitty; lame; of low quality.

2. (In either the figurative or literal sense) Full of shit.
1.
Such a faeciboblious individual, that Emerson. Couldn't keep a social engagement to save his scrawny neck!

2.
A: "… and then I showed her my poetry, which she said was the best she'd ever read!"
B: "You're a faeciboblious piece of crap and you know it. Nobody would ever say that about your god-awful poetry, least of all a woman who was, as you claim, 'a definite ten'."
by Charlemagne1993 August 7, 2017
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