At least I think it was the Oxford Dictionary.

Anyways, heard it during news time on the radio this morning while getting ready for work, along with 9 other words that are now in the dictionary.

Definitions are out of this world, especially Homer's!

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OXFORD, England, 10:21 p.m. EDT June 14, 2001 -- Cartoon dad Homer Simpson's trademark expression "Doh!" has hit the literary big-time, making it into the Oxford English Dictionary. In it's online edition, the dictionary defines "Doh!" as "expressing frustration at the realization that things have turned out badly or not as planned, or that one has just said or done something foolish." The dictionary is the "accepted authority on the evolution of the English language over the last millennium," according to its Web site. On the animated series "The Simpsons", the expression is usually accompanied by a slap to the forehead. The saying is one of more than 1,200 new or revised entries. They will all be added to the next edition of the print dictionary, but its publication is years away. Other new additions and updated definitions include "bad hair day", "full monty" and "serial monogamy".

Thanks Cheev! I just wish we could get the other words and defs here that I had heard, cause they were hilarious when I heard them this morning!