is a contraction of cat Saturday for those too lazy or impatient to use the whole term. Cat Saturday is the name of a blog where they celebrate all things feline.
The sexual act of inserting 3 or more red grapes into the vaginal canal and using your penis to juice the grapes into a liquid state for consumption afterward. Once fully mixed a hardy POW is yelled to signify completion.
Exemplified in the main chorus in 3Oh!3s song Starstrukk.
Stereotypical whistle in which a male uses to convey his pleasure he has undergone simply from glimpsing upon an attract female visage. Usually leads to sexual intercourse.
-Caution-
DO NOT use on cats.
Noun. Anyone person using the name Castiel is often just trying to pretend they are better than they are.
Verb. Using personal names to pretend to be something you are not.