(n) Shi'thead- the Arabic equivalent of the standard english insult "shithead". Can be used candidly without most people grasping that you are actually establishing what an idiot they are.
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.