大大大大笨蛋小小小小坏蛋
[dà dà dà dà bèn dàn xiăo xiăo xiăo xiăo huài dàn]
Super Duper Foolish Tiny Mischievous indicates playfulness or cuteness with self-deprecating humor. The user could be calling themselves silly but harmless fun, emphasizing innocence and childlikeness.