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An emoticon/smilie that represents a combination of :D (smiling) and the rightmost portion of d-_-b, a rare emoticon most frequently employed by east asian users, generally used to indicate thumbs up (among other things).

:Db hence is an unusual amalgamation of horizontal and vertical emoticons, generally used to indicate strong approval (and possibly elation).
Wow, that was a cleverly planned rickroll! :Db

I hope to see you published in the New York Times soon. :Db
by Dadiwalla May 26, 2009
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