cracky-tack Share definition Flag Laughing so hard that you burp and fart at the same time. Although few cases have ever been reported, it is believed to be the number one cause of Scrotal Arthritis. "He had a cracky-tack? What the fuck is 'Scrotal Arthritis'?!?!" cracky-tack by thedirtymeatball January 10, 2012 Get the cracky-tack mug.