jackonary
A stupid joke or a pointless chat. Like when someone asks 'What's the jackonary?' and you just want to scream.
'What's the jackonary?' I said. He said, 'Your mom's at the bar.' I died.
'What's the jackonary?' I asked. He said, 'Your dad's wearing your pants.' I laughed so hard I peed.
'What's the jackonary?' I asked. He said, 'Your sister's dating a goat.' I nearly fainted.