TMSIDK is the abbreviation of Tell Me Something I Don't Know. To show sarcasm at the obvious.
Person 1: "It's raining out"

Person 2: "Tell Me Something I Don't Know"

Can also look at sites like www.tmsidk.com for more info.
by agnoster August 19, 2010
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Something louder than anything and whishlist karlson so it will be release
Dani:Oh you don't know what karlson is?
ITS JUST A LITTLE GAME I'M WORKING OH ABADA AGAFAHA
by Mamanams August 08, 2021
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A saying that's used to tell someone nicely that nothing is getting done about something,that they simply don't care or that you're "shit out of luck"
Employee: "We have a lot of work and no time to do it" Boss: "I don't know what to tell you"
by battleaxe June 13, 2017
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Sometimes heard in military circles, the phrase denotes someone who is overly-involved but doesn't really know what is going involved.

Usually used to point out a micro-manager who misses the forest for the trees.
Upon seeing a clueless officer trying (and failing) to prepare a Rifle-Launched Grappling Hook for use (not his job), a soldier might state to another, "Man, the LT is Swimming in the kool-aid, but don't know the flavor."

Variations include "All up in my kool-aid, and don't know the mix", or the abbreviated "Swimming in it."
by Grazing Fire April 13, 2011
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You don't know what I got.

A phrase that is used by rex in victorious stating that Tori doesn't know what rex has in his pants , Also a term that can be used when misgendered or wanting to imply you may be another gender . usually used as a joke.
Sasha: Yeah me and Mikasa had a kid together. (joking)
Jean: That's not biologically possible
Sasha: You don't know what I got. okay? (bursts out laughing)
Jean: (Also bursts out laughing)
Connie: (Doesn't know what's going on but starts laughing too)
by miasma-from-my-ass March 16, 2022
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What one might say when another person makes you slightly(or considerably) annoyed.
You are standing in line and a lady screams at you to move to the back for her fair turn.

You reply with, "Bitch, I don't know your life!" and casually move to the back of the line.
by Lalaleah December 15, 2008
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don't cha know

A Minnesota pharse that can be put into any sentence and still make perfect sense to another Minnesotan. In reality, these three words (two actually real words) are completely pointless, but nessicary to speak Minnesotan fluently (See also could be worse, you betcha.
I went to the store today, don't cha know. ~ Don't cha know, he was one of those liberal fellas. Crazy as hell, don't cha know. ~ I'm stuck in traffic again, don't cha know. (Please, you get the idea)
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