Gibney is a large comet that enters the Earth's atmosphereonce 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.
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"