A single particle emitted by the fup, often detected by a fup-o-meter. If enough fupons are present, they are often visible to the naked eye, and may cause a tingling on the back of the observer's neck, similar to the feeling of goose bumps.
Her fup was so big I didn't even need my fup-o-meter to see the fupons.
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.