My son’s friend just picked up his cell phone, talked into it, hung up and said, "My friend just butt dialed me."  I said, "What?" He said, "You never heard of butt dialing?  It’s when someone accidentally calls you by pressing a button on their phone in their back pocket with their butt."

Come on folks… it’s a bit of a strange term, but we’ve got to keep up with the new lingo!  Later he told me that it’s not new lingo.  It’s been around for years.  But it’s new  for me!  Ha!