Somebody named Rodrick who's a complete asshole. A huge jerk. So, instead of calling him by his name Rodrick, you replace the R with a D. So, it's pronounced RodDICK. This should send the message that he's a DICK.
Rodrick "Where is everyone? I thought we were supposed to meet up here."
(Elsewhere)
Person A "Did you get rid of Roddick?"
Person B "Yeah, I sent him the wrong location."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.