1. To indicate to an individual that you will do an act but in reality you have no intentions on following through.
2. To change your plans if something better comes along and not inform the person you originally made plans with. Leaving that person wondering what happened.
Originates from Lacey Township, NJ by an individual named John Cang who is famous for the above.
Strak: John said he was going to hang out last night but that nigga Canged me again.