After two men take shits without wiping, they stand back to back while naked. A third person lays underneath them with his mouth underneath their butts. Someone poors hot chunky chicken noodle soup down the two mens backs. After the soup flows through their backs and between their dirty gooches, the man underneath will drink/eat the chicken noodle soup.
To be a ChunkyChize is to be someone who is the largest waste of oxygen to ever exist. He or her (most likely a her) has the largest breasts in Australia and with the slightest gust of wind can topple mountains with ones thighs.