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1.
Means Above and Beyond the Call of Duty. Means very good.
That food was A and B the C of D
by zanec July 23, 2005
 
2.
Phrase. Abbreviation for "above and beyond the call of duty."
Wow, 58 home runs in one season? That Ryan Howard went A and B the C of D.
by LeRose525 May 25, 2011