As stated previously by Aidan Williamson:
An expression of great confusion, or bewilderment; A strong demand for answers; An emphasized version of "what is that?"
Used in the same way as "What the Hell?" is used. Variations can be used, e.g. "What in The Nine Hells is that thing?"

However, the origin is not, as he said, Forgotten Realms; it is an allusion made to Dante's Infreno, from the Divine Comedy. In the Divine Comedy, Hell is divided into nine circles, each one representing a different sin or crime.
The nine circles span from Limbo (for those who have committed no great sins, but are not admitted into Heaven because they do not believe in God), to the ninth circle where Satan himself resides (a circle reserved for people who have been treasonous against friends, family, and their nation.)
Hey, look at this!"
"WITNH" OR "What in the Nine Hells?"

*Large creature appears*
"What In The Nine Hells is that thing?" OR "WITNH?"
by Viskowskii March 26, 2008
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"What duh hell-" is another way of saying "What the hell", just more exaggerated as the L's in "hell" are usually spammed.

"What duh hell" originates from a TikTok video of a person going up to strangers and reviewing their shoes, with them typically being off-brand.

The joke itself is meant to be an "over exaggerated" reaction to what is an off-brand version of a shoe brand, typically being Jordans.

The sentance is usually used as a response to something weird. The meme is also commonly used as a background audio in videos that are similar to shit post videos.
Person 1: Yo yo. Wait wait!
Person 2: *Stops*
Person 1: Yo let me see em shoes! YOOO, what duh hell-
by Ruhroraggy April 17, 2023
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When someone does something for no particular reason, just to see the results.
Andy and Bolt pwned 200 people just for the "what the hell" value
by Andy Light Kai March 28, 2004
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the value assigned to such purchases as aviator glasses, large styrofoam hands, rubber mallots, large styrofoam cowboy hats, and anything on the racks at the front of k-mart.
I didn't really have much money, but i saw these Citizen Kane action figures by the register and said "what the hell".
by iwastoodrunk March 30, 2004
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When you're shocked. this is the only thing you can say.
"Honestly, what in the gay hell!"
by HAHA NO March 14, 2019
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Synonym for: Why did you do that? What the heck? What the F David Blaine?

Shortened to WTHC when used for instant messaging or texting.
Dude, I went to the liquor store but I forgot to buy some rum.

What the Hell Carlos!?
by Mr. Scherer August 20, 2008
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