A loathsome, detestable character, who is not aversed to having a large (or indeed several large) item inserted into his posterior. A rikka can often be used to insult people who enjoy fetish pornography e.g. animal rape or asians.
Not to be confused with a ricca- an insult used against alcoholics and fat people.
Richard: You idiot why did you drop that?
Arthur: Shut up you stupid rikka you're not Jesus.
Coward: I bet that f***ing Rikka has been downloading pornography all day.
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