Gibney is a large comet that enters the Earth's atmosphere once in a lifetime. Just like the comet a Gibney is a person that if you encounter one in your lifetime it's like a comet hitting you. You will never be the same.
When Mr. Gibney enters the room it's like a cometjustburst in.
1) Barbara pulled down her panties to expose her shiny giney
2) A well groomed woman has a shiny giney
3) "So did Samantha have a shiny giney?"
"No, she had a scary bush"
12 step recovery jargon referring to someone new who talks about how great life is, now that they're sober. 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.