“... In short, maybe a little electronic spider thats power source feeds off of screams of terror... is not the best Christmas gift for your small child,” Hard wrote.

Hard is not alone in her assessment of the toy’s eardrum-busting, creepy nature.

The person who invented this toy is clearly not a parent. pic.twitter.com/DQGsrn58mI — Ellie Hall (@ellievhall) December 12, 2018

If anyone get my kids #Yellies from @Hasbro for Christmas (or any other time of the year) they are going to babysit for free for the rest of their life!#FridayFeeling pic.twitter.com/FpBpZbPWYQ — Stella 💕👩‍👧‍👧🍷🍹👍 (@StellaNova87) December 14, 2018

If someone gives your kid a #yellies toy this christmas... they hate you #truth #worstchristmasgiftever — AdventuresinMommin (@AMommin) December 4, 2018

The buzz around the toy line may be primarily negative, but some international mom bloggers are riding the wave with #Whattheyell parties, which gather children to scream Yellies into submission in a group setting.

Here are some glimpses from #WhatTheYell Party celebrating the launch of @hasbro #Yellies India. Had some great fun interacting with the fellow YouTubers and mom bloggers. video coming soon on https://t.co/z6RFOiECHi @PRPundit_India pic.twitter.com/xwjS12pTag — Kyrascope™ ToyReviews (@KyrascopeTV) December 11, 2018

A spokesperson from Hasbro told Buzzfeed News that the company appreciates the stories about the reactions kids and families have had to Yellies, "whether they love the fuzzy little pets that move faster the louder you yell, or are reaching for their ear plugs."

"We are sure we have left many parents wondering, what the yell were they thinking?" the spokesperson told the publication.