A pet name that works in the place of any other generic pet name (babe, hun, etc). More for friends than couples.
Probably originated in a typo (like teh
) and was at first popular with scene and emo kids (half of which originated as the geeks who may also speak 1337
) but is now popular amongst all stereotypes. Think of the way the skinny jean trend got around (emo kids to scene kids to forever 21 stores across the country) - that's how the kidd trend got around.
To my own experience, it's quite popular in Southern California, but may not be quite as popular in other places (YET).