When you are partying with your drug of choice but you dont want anyone to know what it is, you justsay im feyocing.
What are you doing? Oh im feyocing tonight. Oh really so am I. The person you tell that to knows but nobody else does so you can use it in public with nobody knowing but the person you are telling.
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.