This is a real word yes, and you type it in group chats when your fucking bored.
Person One: damn did you see MaddiWinni lose that game last night?
Person 2: I don't like football Person One: fuck you
Person 2: uuuuuuuuuuuuuuushdidhdksgsj
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.