When one uses their phallus to poke another person's butt cheeks, but ends up prodding their sphincter instead
Person 1: Did Barry "poke the pineapple"?
Person 2: Yes, and he took our friendship to a whole new level...
Person 1: So he's out of the friendzone?
Person 2: Unfortunately yes
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?