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RCO is an abbreviation for the term "Raging Clitoral Orgasm". This abbreviation is incredibly useful when you're lying in bed and your can't be bothered to give full commands to your man servant because you're too busy being fed grapes by your other man servant.
"Slave, go get that hitachi and come give master a few RCOs, I want a little sweat before I have you both bathe me."
by Mlle Spineripper June 08, 2013
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A militarized trading faction hailing from the rural ruins of the UK. The faction posses many vessels, though the Enfield is the most beloved.
The RCO are getting murdered at the Whitman Checkpoint.
by Empress Saki January 15, 2017
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