There is no true definition. The word is only used by the master of masters. Although the word phrase has lots its translation and true meaning during the time of the medieval ages, some believe that it means to know "what is best". If someone were to make a wise choice, then another party would exclaim that this person "knew his/her goods" in that specific area.
Know ya goods for trying to act like the master
KNOW YA GOOODS!
A catchphrase said by "Big Freedia".
Guy 1:Aye man that concert was poppn'
Guy 2:YOU ALREADY KNOW!!
27๐ 18๐
To know the truth about something.
To know "what's up."
That ain't my baby, I know da real!
4๐ 1๐
A passive aggressive way to avoid actually asking a question directly.
Also: A passive aggressive technique to make an assertion, give direction, make a suggestion.
I don't know if you're going to take out the trash. It's in the garage.
I don't know if you like your shoes with that outfit.
I don't know if you wanted that chicken sauce on your shirt.
7๐ 1๐
A line used to ask somone if they know where to buy some drugs.
Hey matt, so do you know anything?
5๐ 1๐
To be a master of something, to be competitive in a particular field
Urban Dictionary knows its stuff in slang words definitions (neutrum form of "know one's stuff")
4๐ 1๐
The third baseman on Abbot & Costello's baseball team in St. Louis.
Costello: If I mentioned the third baseman's name, who did I say's playing third?
Abbot: No, Who's playing first.
Costello: Stay off of first, will ya? What's the guy's name on third base.
Abbot: No, What is on second.
Costello: I'm not asking you "who's on second?"
Abbot: Who's on first!
Costello: I don't know
Both in unison: THIRD BASE!!!!!!!!!
42๐ 33๐