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A term coined by Bill from New York -- old school, blind phone phreak extraordinaire William Acker -- used as an alternative to words like "awesome," "epic," or "leet." "Yumerific" is considered to be the more emphatic version of Mr. Acker's more commonly used intensifier: "Yummy."

When bringing up the word again one night, Bill went on to say that he likes Yogi the Bear, doesn't know anything about sports, but hopes that Yogi the Bear will one day teach an English class. No explanation was given as to what all of this means, or how it is relevant.
The sounds of panel pulse signaling on a trunk is yumerific!
by Bill from New York July 07, 2013
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