The pineapple represents hospitality and welcoming. A pineapple is placed on a porch or mail box by swingers to signify that a swinger party is going on. A pineapple is turned upside down when a person is in search of a swinger party. Originally it was turned up side down in the individuals shopping cart. But pineapple popularity has made it accepts on clothes and other items. Swingers use this symbol to identify each other in public.
My neighbor left an upside down pineapple on my porch last night. I think he wants to swing.
by Starrydreams001 August 18, 2017
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The dedinition that references swingers would be true if it read, "People who aren't swingers, think swingers do this..." before giving any details. It's a myth made up by non-swingers. Swingers do not use pineapples, pink flamingos, black wedding bands, etc. This is silly. If someone "knows the code" there would be no reason to use one. If they don't, the act is futile. Swingers hook up through online sites, clubs, parties, or simply by saying, "Wanna fuck?" Same as anyone else. I have never met a swinger who employs this. In fact, most lifestylers have never heard of it.
Person A: Did you hear about how swingers use upside down pineapples?

Person B: I am a swinger and I have no clue what you are talking about.
by Dat Mawfugga December 14, 2021
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This is when a guy masturbates upside down and cums on his own face. Often licking up the remaining cum.
Dude I was was so lonely last night I gave my self an Upside Down Pineapple Cake.
by bullpen 6/3 May 9, 2011
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The girl is upside down with her head hanging off the bed/couch and she is giving the boy a blowjob. When he cums she keeps it in her mouth and proceeds to spray it all over his body, hence the topping on the cake.
Boy1: dude, why are you all sticky?
Boy2: girlfriend tried something new, the upside down pineapple cake!
Boy1: you need to end that relationship asap.
by angelD2010 March 9, 2009
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Fellacio performed when one partner lays upside down , on their back with head hanging over the edge of the bed. The other partner inserts his member into the mouth and wha la
upside down pineapple cake blow job begins. Frequently performed in West Kildonan.
I got so ripped at the Legion last week I convinced Hellen
to give me an upside down pineapple cake blow job. It was sweet....
by Zhoda Smith December 23, 2006
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Something non-swingers and lifestyle posers think swingers do. Although non-swingers who are curious and lifestyle posers do have a lot of fun with it, as they should. (Same goes for pink flamingos and black wedding bands.) Suffice it to say, if someone knows the code there's no reason to use it. The internet also eliminates the need for porch signaling.
Q. Why did someone leave this upside down pineapple on their porch?

A. Because they're retarded.
by Glen Dale Riley December 14, 2021
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