A person who simply doesn't know what's going on or being said around them.
Yeah, J.J.'s Not Knowing.

(He's the only one who has no idea what we're talking about.)
by OdontEvnGetMeStartd August 6, 2019
someone who comes off as knowing everything about everything, but upon review is mostly incorrect.
Chris started in today about common-era anthropology...wow what a know it not!
by sandspit January 1, 2010
"People in the know are aware of a nuclear explosion if even the slightest jolt was made upon the renegade carrier."
-part of the storyline for Blast Corps
by Dave October 21, 2004
1)to have intimate knowledge of a particular subject not necessarily every subject.

2)to be privy to uncommon knowledge

you know who Gwyneth is dating?

ask Rita she's in the know
by i heart your mom March 31, 2006
in Biblical times, it meant to sleep with someone. you will see the word used in the Bible to mean that.
God: "Abe, you knew your maidwoman as well as Sarah? And she gave birth to that bastard of yours, Ishmael?"

Abraham (boasting his double scoring): "Yep, God. My sons are Isaac and Ishmael."
by terrell mateo May 28, 2003
I love you without knowing how,
or when, or from where.
I love you simply without problems or pride,
i love you in this way because i do not know any other of loving but this,
In which there is no I or you,
So intimate that your hand upon my chest is my hand,
So intimate that when i fall asleep
your eyes close.
....knowing

what a lovely message
by 140CM February 18, 2022
(verb) to have knowledge, to be aware of something, to be acquainted with someone, to have carnal knowledge of someone.
Person A: There's a big queue at the club- we'll never get in.
Person B: It's okay- I know the bouncer.
OR
Person A: I knew Caroline before you married her.
Person B: Yes, she told me and I'd rather not discuss it, thanks.
OR
Person A: That bouncer is staring at us- do you know him ?
Person B: Yes, I sodomised him repeatedly last weekend. It was quite pleasant.
by Nice Uncle Andy October 6, 2006