What is a yum burger?

Excuse me, I couldn't help but overhear your mention of a 'yum burger.' Could you please elaborate on what exactly a yum burger is? Is it a new type of burger that's been gaining popularity lately? Or perhaps it's a unique creation with a specific set of ingredients that sets it apart from other burgers? I'm quite intrigued and would love to learn more about this intriguing culinary item.