Actually masturbating. Only to be used when the person is actually masturbating (hence a/m). Kind of like 'mol' (masturbating out loud), but people use 'mol' when they are not masturbating.
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.