Usually used to describe a psychotic female. The more capital letters, the more psychotic.
IE. C-RAZY with a capital CRA has displayes less psychotic behavior than someone who is C-RAZY with a capital C-R-A-Z-Y!!
guy1: Dave's girlfriend is C-RAZY with a capital C, she trashed his computer when she found he had hung out with his old babysitter.
guy 2: Dude, Alan's girlfriend is C-RAZY with a capital C-R-A-Z-Y, she set his place on fire because she thought he looked at another girl!
guy 1: Oh yeah man, that is C-RAZY with a capital C-R-A-Z-Y!!
G_razy is a combination of great and crazy. This combination of words express a superior delight not able to be expressed previously through the words greatand crazy alone.
Also, though rarely done, the word G_razy could be changed to mean im as crazy as a G, or a gangster in other words. This way you could mean many things at once giving you again a greater power to express feelings.
"Crazy" x420, only used on special occasions in order to be able to display just how enormously and unbelievably awesome something or someone really is.
K-razy is a small gang of cool gangsters who go thrill seeking and breaking the law. They have had many girls chasing them about trying to hit them up in dms. They are all funny and good looking except from anyone called Michael whose forehead is like megamind. Breaking the rules is not a problem for them as they are fast, stealthy and normally have a few tough guys in their group(Josh and olly).