casual abbreviation of the word "something" which allows you to use it as a verbal tic without experiencing the shame inherent in actively typing 9 whole letters to prove how inarticulate you 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.