"Chelsea is a pretty shibbyiby lady"

Shibbyibying = partying hard
Shibbyiby = beyond cool, super great.

"Shibbyiby!"
Shibbyiby is also a term for attractiveness, and as a rating.
Eg - "Shibbyiby!"
"Not shibbyiby... "

If someone is hot, they are shibbyiby