short for "crazy ass bitch"; it is a simplified way to call someone such. Can also be short for "crazy ass bitchin'", meaning that either someone is bitching at you or something is totally bitchin' (awesome).
George-Carl: "So, how'd your date go?"
Brendan: "Bro, she was such a cab. She threatened to burn the restaurant down because they gave her regular soda instead of diet."
George-Carl: "Oof, cab to the max."
Sarah: "Check out my new phone!"
Mary: "That's so cab!"
Acronym for Cocky Arrogant Bastards; a club for the best. A member within this club may also be referred to as a CAB as well. The prerequesites are strongly based upon overall appearance, class, family heritage, family wealth, current occupation, and most importantly, a snooty I'm-better-than-you attitude. In order to join this club you must initially contact and interview with the founding member and must be approved by every single current member as well thereafter; an example of how like-minded each member is ideally supposed to be. The founding member, however, has authority to veto or exile any applicant or member at any time if violations are severe enough.