Someone or something so disagreeable that they are a step higher that pugnacious. Can also be rude and insincere.
The woman showed how fugnacious she when she went on a diatribe against her husbands lack of ability to understand her pms. She screamed and scratched his eyeballs out.
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.