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What does "My duh on X" mean?

Does it mean "I like X" or "I don't like X" or something else?

What does "duh" mean in general?

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This is a colloquialism at best. Where have you seen it? – Chenmunka Mar 25 '14 at 15:44
@Chenmunka I got an email from a US colleague. – peter.petrov Mar 25 '14 at 15:48
Roger's and Horatio's answers match up with that email I got. Not sure why they were downvoted by other people. – peter.petrov Mar 25 '14 at 15:50
Never saw this before. More context would help. It may even be a result of autocorrect. – Canis Lupus Mar 25 '14 at 16:02
I've only ever heard of "no duh" being used this way, not "my duh". (As in, "no sh*t, Sherlock": "no duh, idiot, of course the fresh coffee is going to be hot!") – TylerH Mar 25 '14 at 17:42

In this context, I believe it means something like "My mistake; I should have known that."

As @DavidM points out, "Duh" tends to be used to point out the ignorance or obliviousness of a statement as something that should be obvious:

"Wow, that engine gets hot after running for an hour."

"Well, duh. Of course it does!"

Saying "My duh" would imply that you are acknowledging that something should have been obvious to you.

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@Thanks, I think this matches up with what I got in that email. – peter.petrov Mar 25 '14 at 15:51

"My Duh" means "my stupidity" or "my mistake", from what I can tell on my internet search. "Duh" is the sound we make to sound dumb - see link below for video examples. I imagine that it is a mashup of "my bad" and "duh".

For example: Duh moments

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This seems reasonable. I just didn't wish to step out on the limb of defining a statement I haven't heard. – David M Mar 25 '14 at 16:23
Your answer is good too @DavidM, because the OP asked what "Duh" means, in general. :-) – Kristina Lopez Mar 25 '14 at 16:56

"Duh" is a word that represents a sub-vocalization. It usually is used on its own to suggest that the other person has said something stupid.

"My bad" is an idiom which means roughly: "That was bad, I did it, and I take responsibility."

"My duh on that" probably means the speaker is saying: "That was stupid, I did it, and I recognize that."

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@Thanks, I think this matches up with what I got in that email. – peter.petrov Mar 25 '14 at 15:52
I agree with this interpretation. I am no language expert here, but I am a native US-English speaker. "My Duh" isn't something that I have heard, and sounds like a person's own variation of another slang phrase "My bad", which is to admit to something being your fault. I would interpret somebody saying "my duh" to mean that they are acknowledging a misunderstanding to have been theirs and not yours. It essentially meaning the same thing but perhaps with an additional (slang) nuance on how they chose to express it. – ryanjdillon Mar 26 '14 at 11:17

I've never encountered the term "My duh on ..."

Duh, in general, is a sound that is made to imply derision or feigned ignorance about the perceived stupidity or obviousness of a statement.

In other words, to say "You really don't understand something as simple as that?" It's mild, but impolite.

Example of usage:

"We really should have bought our tickets to the movie before it sold out!"
"Duh!?! You think?!?"

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