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 January 9, 2016

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

knows his shits

Meaning that someone is very good at what he does, and knows a lot about it (basically the exact thing as "Knows his stuffs)

Random person roasts a feminist with impeccable logic..

You : This guy surely knows his shits!

by Name is Jeff goldblom March 11, 2017

I know my shit

When you know what's the dilly, yo.

-"Got some connections, bro..."
-"I know my shit."

by nikkan_hanil June 30, 2004

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 March 10, 2016

you dont know jack shit

you dont know jack shit a word meaning you know nothing or are too stupid to figure it out

dude whats an electric car

man you dont know jack shit you are too stupid to know what an electric car is unless you get ran over by one

by littlejimmie January 24, 2019

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

you know shit from shinola you stupid person.

by <br ea sports June 6, 2020