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.
How did your Tinder date go?

Pretty good, she let me give her a Shanghai Yum Yum.
by CFTRW April 7, 2017
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When you realize the cute 20-something girl you have been walking behind and checking out for the past two blocks is actually a 65-year-old Asian woman.
Once I caught up to the woman of my dreams I realized it was a cruel Shanghai Switch-a-roo.
by TheGenZod January 24, 2012
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When you tie someone up and grow a shaft of bamboo up their juicy rectum causing anal splintering and eventually you become one with nature and Buddha himself.
"Hey John how many months has it been since you checked on the progress of Jennifer's Shanghai Bamboo Chute."
"Oh I'd guess that it's been about one and half since that's how long it takes for full bodily numbing to progress and I haven't heard her scream in a week."
by squeaalerrrrr March 27, 2018
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When your at a party and everyone falls then you jack off and splurge between their but cheeks
John:What did you do last night Bob?

Bob:I went to a party and when everyone was sleeping i gave Sharon a Shanghai Meat Bun

Sharon:Thats why my ass cheeks were stuck together
by ChoadZillla69 February 19, 2010
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In the year 1986, an epic party was thrown in shanghai. The entire city party and it was so epic that 1,318,386 bodies were found dead and there are still more than 950,000 bodies missing. The Chinese military tried to intervene to stop the party, but they did not succeed. The party lasted 17 days and more than $2.3 billion dollars worth have damage was dealt to the city. After the dust cleared and the party ended, the Chinese government decided to hide the fact that their was an awesome party by telling the world they just experienced a massive earthquake.

Recently an American director found some footage of the party and tried to recreated a movie based of it, but on a smaller scale. The movie is commonly referred to as "Project X"
That party last night was sick! But it was nothing like Shanghai 1986
by The informer November 29, 2012
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A nice, prestigious private school for westerners in Shanghai, China. It's a good school, surprisingly. The school is enormous, as it teaches pre-school to 12th grade. The work is hard, but the teachers are nice.

The girls are somewhat whoreish, and the guys are douchebags, as always. Most of the kids there are super rich because their dad's job planted them in China.

Shanghai American School has random fun days, such as Black Plague Day, Pompeii Day, etc. It's a good place to be.
Expat: Do you go to SMIC?

Kid: No, I go to Shanghai American School!

Expat: Oh that's a good school! :)
by cjrox03 October 1, 2011
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The act of ejaculating into the mouth of your partner during sex, then punching them in the stomach afterwards so they throw up all of the sperm that they just swallowed.
Billy: I got up to some dirty shit last night with that hooker man.
Andy: What do you mean?
Billy: I gave her a Shanghai Gut Punch
Andy: You sick fuck
by Southbound Soul November 26, 2013
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