The uncenventional Buttplug Challange goes under the Hashtag #UnconBPChallange.

The Challange includes the use of random objects and including produce to insert analy and wear it for a set duration. Afterwards the object is to be left in a public place, including bit not limited to public transport, parks and museums.
The trend is believed to have started in July 2020 and already counts numerous participants.
Multiple health officials have already warned to not use everyday items for self pleasure due to health risks.

This is all not true and made up. I just wrote this to prank my roommate who found a banana and a cucumber in a train and ate them.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.