A name often given to a female of Persian descent that is good in the bedroom. Not all Persian ladies qualify but most would fit the bill. Most of the time if you see an exotic woman that you would like to escort to the bedroom, you are most likely craving some "Persian Yum Yum"

Acronym for Young Urban Minority Sluts.

When you're so irritaded from your thoughts so you don't know what to think about so your mind goes "fish yum yum :)"

A Shanghai Yum Yum is a semen-filled doughnut.

The Shanghai Yum Yum is typically achieved by cutting a small hole into a plain doughnut before a willing female masturbates their partner into said doughnut (usually while stimulating the prostate with the deft use of a little finger) thus filling it with jizz. The female will then immediately eat the Yum Yum as it is best served warm.

The man who comes to snatch your body away from you at night while saying the words "yum yum yum"

Oral sex from Cambodians

A sandwich that can only be called such when created on Thanksgiving Day consisting of every ingredient available during one's Thanksgiving meal.

The bread must be a dinner roll from the meal as well.

If the sandwich or any similar food creation is created not on Thanksgiving Day or not following any of the specifications previously mentioned it is simply a Thanksgiving Sandwich, and NOT a Yum Yum Boat.