The Jelle is an amphibious lizard creature often found around swimming pools. Can run very fast, but, contrary to popular belief, is extremely slow in the water, having to take regular breaks to regain energy.
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.