Dummified 

One is who wrapped up in their own stupidity, similar to a mummy = mummified. Dummified people are so stupid that they should be individually wrapped without spreading their stupidity to others

Come'on, why are you so dummified you don't know when to shut up?!

John Smith's friends were are dummified when faced with a sophisticated question they just stood their, dummified.

Dummified by Batgirl58 March 31, 2011

Dummenting 

Dumb+comment= Dumment

When someone says something out of their league,not cool, something DUMB
..they are dummenting

*Texting*
Griz- You are talking out of your league bruh! Your channel is too small to post stuff like that.

Blake- Dude, your channel is even smaller why even bother?

Griz- I said your content was not for small YouTubers like you ! I post stuff of my own class STOP DUMMENTING!!!

Dummenting by Emporiohak March 7, 2018

Haha Dummiss 

An utterance you make when someone does something really stupid and makes a complete fool of them self, while you point and laugh at them.

(SUBSCRIBE TO HAHA DUMMISS ON YOUTUBE!)

Lexi: *Falls off my scooter while going down a hill even after I told her not to do it*
Me: *pointing and laughing* "HAHA DUMMISS!"

Haha Dummiss by Confobbler August 2, 2023

Internet for Dummies

America Online

He was too stupid to use a real ISP, so he got the Internet for Dummies

Internet for Dummies by DonH October 2, 2003

Mask Wearing for Dummies 

The long-overdue title for millions of anti-maskers and maskholes around the world, whose selfish actions only prolong the coronavirus pandemic on earth, and lead to more infections and deaths—they need to come to terms that their constant refusal to don a face mask in public has serious consequences, such as fines, push-ups, and jail sentences (or even caning or deportation in some extreme cases).

The author of “Mask Wearing for Dummies” hinted to his publisher that he’s concurrently writing “Lockdown for Dummies” and “COVID-19 Vaccines for Dummies” targeting at millions of covidiots, particularly the diehard Trumpists and hardcore QAnonists from the red states, who get most of their corona advice from their Maskhole-in-Chief.

Mask Wearing for Dummies by MathPlus May 1, 2021

Dummied 

To beat/completely annihilate someone in a form of competitive event so badly that it was like you were facing a non-living mannequin.aka. a Dummy.

"We dummied those guys in football last week"

"I know he thought he was tough, but I completely dummied him"

Dummied by j1mm3h May 8, 2009

mutton dummies 

belfast slang for a pair of slippers dated c1950

hes wearing his mutton dummies

mutton dummies by Victor Luney December 14, 2008