Top definition
noun, (OH-EYE-SEE-DEE-EN)

internet-speak for someone who engages in constant douchebaggery and/or scam artistry, esp. via the internet.
(1) That OICDN took my money and then sent me an empty fuckin' box in return. That no-good sumbitch.

(2) Staples and glue, staples and glue, watch your back, or an OICDN'll scam you!
by Plech March 28, 2007
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