"ric" is someone who shall not be named, and "du" originated from "nick duusch" (look it up on here for definition) whereby the du was taken as to combine the ric (someone who we don't particularly like), and du (from nick du, look it up remember) which makes it an insult.
"what bloody ric du, last night he used too many kleenex tissues"
by Scott N and Andrew W May 24, 2004
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