If 2012 was the year of the presidential mask, and 2013 the year of Miley Cyrus, 2014 will be remembered for an equally scary Halloween trend: This is, retailers tell us, the year that meme-inspired costumes conclusively go mainstream.

On HalloweenCostumes.com, they’re peddling everything from a tri-boob get-up to a bent iPhone suit. Marketing companies have reported an uptick in searches for costumes, such as “Slender man” and “spider dog.” And almost two weeks before Halloween — before many people have even bought their Halloween costumes, in fact — concerned citizens have already begun the backlash question. (“Where do we draw the line?” Carmen Fishwick and Elena Cresci asked in The Guardian. “Should we be outraged?”)

Perhaps the uptick isn’t particularly surprising, given increasing offline attention to distinctly online culture. (The existence of this very blog is proof. Hi, guys!) But with the amazing variety of viral gags, gaffes and happenings that went down this year, there’s also an extraordinary amount of Hallowmeme material to draw from.

Buzzfeed has an entire guide to dressing as a “basic b—h,” a newly mainstream term for a perennially mainstream person who likes brunch, Uggs and pumpkin spice lattes. Viral cat costumes abound on Pinterest. (You’ve all seen Grumpy Cat and Nyan Cat … but Hero Cat is new this year!) Over at BrandsonSale.com, a purveyor of controversial, zeitgeisty costumes, the Ebola containment suit has been big this year — right alongside Joan Rivers’s wigs and Mork & Mindy costumes.

“This will literally be the most ‘viral’ costume of the year,” the Ebola suit promises.

But if any deadly disease is going to rule Hallowmeme this year, it’s got to be ALS: Half a dozen costumers are selling their own takes on the ice bucket challenge or advising the DIY-minded how to make ice bucket costumes of their own. Because of course, when I see a charity meme in my Facebook feed, the first thing I think of is everyone’s favorite October holiday.

… Who the heck comes up with this stuff?!

“As far as the creative process goes,” said Leigh Wendinger, of HalloweenCostumes.com, “we have a talented team of geeks and pop culture addicts who scour the Internet looking for trending ideas … The thought process usually goes a little something like, ‘You know what would be hilarious? [Insert idea here].’”

As for determining when meme costumes are appropriate, Wendinger says her colleagues bust out something called “the five T test” — which is hilariously official-sounding, given that we’re talking about dumb Halloween costumes based on memes. If the costume is three of the following — timely, topical, targeted, thought-provoking and/or tongue-in-cheek — it flies with Wendinger.

So Apparently Kid? Totally cool.

Hot felon Jeremy Meeks? He could go either way.

Shovel girl? #BringBackOurGirls? Celebgate girls? Eh, no — not unless you’re trying to provoke thoughts on the downfall of humanity and/or relive the fate of this deeply misguided woman. Even being basic is better than that, we say.