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1.
The first "O" in the second Microsoft logo. It has horizontal lines through it and a hole in the center. First introduced in 1982, retired in 1987. Now only memorialized by the "Save the Blibbet" campaign and honored by the Blibbet Burger served on Microsoft's campus.
At one point, I had a "save the blibbet" button, but unfortunately, I can't seem to find it.
by euphgeek October 04, 2007
 
2.
Derivation of the word blurb meaning apporximately the same thing only in a smaller scale. Whereas a blurb may be two or three sentences, a blibbet is usually not even a sentence.
There was a little blibbet in the article hinting that George W. Bush was a complete moron.
by Brian J. Ross II October 17, 2004