I'm pretty sure it actually comes originally from PUA circles (though given the PUA/manosphere/toxic gamer culture overlap that's not saying much). Some of the older guides definitely talk about having a "prop" to initiate conversations with people.
It's 2028. Twitter is the go to platform for incels worldwide. Full length hentai body pillow sales spike beyond capacity. Trumps cyogenically preserved head is both the new logo and server farm after janky Jonny Mnemnoic shennagins become possible. Every 6 months or so, a wicker man style ceremony has become needed to add brains to the jar for additional RAM. Somehow, this dilutes the original intelligence so it no can do little more than blink out the semaphore for "HATE-JEWS". This is considered a feature, not a bug.
Around 2042, the ceremonies are multi participant, highly eleborate and the brain mass is capabale of subsuming whole busses of fuckers at a time. Thanks to the great trench project it's largely confined to Asia due to legal issues. Child sex offences now happen on a city wide scale commited entirely by one entity having absorbed the most foul and deliquent minds of the last decades. The background hum within 15 miles is unsettling. A thousand different voice all muttering just slightly out of sync. "Peterson must be smart because no one else went to Russia to cripple themselves. You can't eat that much meat and be dumb. He has bionic shins now so whats the problem".
The eventual sociatal collapse is seen as a blessing by the remaining humans. The experiment conclusively failed.