Overly fond of drinking.[From Latin bibere (to drink).]
"Seriously though folks, there are certain caveats that I have learned from standing before both overly sober and overly bibacious audiences." Ed Harvey; Media musings; Advertising/Communications Times (Philadelphia, Pennsylvania); Nov 2001."Banfield's bibacious drongo was not so much flushed as drunk, having gorged itself on the nectar of a native melaleuca or paperbark tree."
Mark Chipperfield; Drunken Drongos And Suntanned Soap Stars; The Daily Telegraph (London, UK): Mar 27, 2004.
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