to know shit

- a state of being
Being familiar with a topic or a broad range of topics. Either having extensive knowledge in a subject that your peers would consider you an expert, or having a firm grasp of a variety of topics that can summarize a wealth of practical knowledge.
You should listen to him, he really knows, his shit!
Trust me, I really know my shit.
This sentence is required to know shit.
by TheStylingDude December 03, 2015
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know shit from shinola

For many, especially in the Southern US, it means the person referenced is an ignoramus . That is, if the person had their shoes shined. they could easily be fooled by the shine man who could just as well put shit on their shoes as shoe polish
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nobody knows shit about fuck

Essentially means noone knows what's going to happen.
Derived from a quote from the Netflix series Ozark
It has become widely used in the cryptocurrency sphere as a phrase to remind people you can't know if the market will go up or down.
Redditor 1: Did you guys buy the dip? I bought LRC and CRO
Redditor 2: This is not a dip, this is the beginning of bear market
Redditor 3: Nobody knows shit about fuck.
by xd_baTron January 09, 2022
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An extreme way to invalidate a person's opinion. It's a hardcore dis meant to bring the person it's directed at to complete silence.
Marven: This war is like fucking awesome yo!
Shanaynay: You don't know shit about fuck,asshole.
Marven:....................well damn.
by Crazyspirit October 23, 2007
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know your shit

To know your shit means you're really knowledgeable about a particular topic or field
Lindsay Lohan: I'm telling you the purity of this meth is 61%

Me: Wow, you really know your shit
by Ededdandeddy November 06, 2015
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Do they know their shit

Do they know their shit means have they mastered something, or do they know they're shit meaning their ignorance makes them worthless as an expert.
Do they know their shit or do they know they're shit?
by I, Wreckerrr July 16, 2021
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To be oblivious or uninformed on a subject you are trying to create a dialogue about.
The fact you think the government faked the moon landing proves you don't know shit from your asshole.
by djstickyfing3rz April 03, 2015
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