I know, I know 

A sentence or phrase used by someone (usually a kid) who becomes utterly annoyed hearing the same thing over and over again and being told what to do (usually from their teacher or parents).

Mom: You need to do your homework young man and you need to get it done now.
Son: I know, I know! What's what I'm trying to do, give me a break would ya?
Mom: I can't tell. Do it now

I know, I know by Mary Mary Quite The Contrarian January 27, 2020

I know, I know 

A sentence or phrase used by someone (mainly woman) who become utterly annoyed hearing the same thing over and over again and being told what to do (usually from a man).

Man: Girl, you need to get your work done and you need to get it done now.
Girl: I know, I know. Give me a break I'm doing what I can.
Man: I can't tell. Do it now

I know, I know by Hidkidd March 4, 2019

I know why Yoda sighs… 

I know why Yoda sighs… — The helpless, exasperated, ejaculation uttered when someone who is suppose to be watching your back completely misses the mark.

Your mission partner only has one well articulated and necessary job necessary for the successful completion of “THE PLAN” and they absolutely blow it.

The origin of this expression is the scene in the movie: The Empire Strikes Back when the Jedi Master Yoda deeply sighs after Luke Skywalker fails his test inside of the Dark Side tree.

Luke had one job…ONE JOB!!!!!!!

And he blew it; HE BLEW IT!!!!!!!!!!

And Yoda sighed!!!!!

You had one job…one motherfucking job…and you blew it; YOU BLEW IT…now I know why Yoda sighs…how could you have fucked that up!!!!

I know why Yoda sighs… by Mind Hunter the Profiler September 22, 2023

I know a guy 

When you know how to personally contact an expert in a particular field--especially when the subject is unusual, strangely specific, or illegal. Often used when you do not want to reveal the identity of the contact or how you came to make the acquaintance of such a person.

Co-worker: "The boss said a hooker took off with the USB flash drive with all our vital code stuck up her vagina. How are we going to find her and get it back?"

You (not wanting to talk about how you did IT for a pimp/gynecologist who owes you a favor): "I know a guy."

I know a guy by General Deviance June 28, 2018

Trust Me, I know what I'm doing 

A phrase often usd by people who don't really know what they're doing.

This catch phrase was often used by the 80's TV cop Sledge Hammer right before he does something that results in some sort of catastrophic event or disaster.

Captain Trunk: Sledge, you cannot disarm that nuclear bomb!

Sledge Hammer: Trust me, I know what I'm doing.

(A nuclear explosion ensues thus ending the season finale of Sledge Hammer)

Trust Me, I know what I'm doing by d_art July 10, 2005

I know what you are 

Knowing or presuming someone as a member of the lgbtq+ community. Commonly used when commenting on a character of whom many head cannon as queer. Also present in the “homophobic dog” meme lore.

“i know what you are Michael” (mike wheeler stranger things)

I know what you are by ivyisliving August 5, 2022

How would I know 

Usually said when someone asks you a question that you really don't want to answer, but they won't leave you alone until you answer it. Usually you should say this when your little brother asks you a stupid question and it will cause him to leave you alone and ask your parents.

Little Bro- " Why do girls have cooties???
Me * precedes to browse twitter and facebook*
Little Bro- " I said, Why do girls have cooties!!!!"
Me " How would I know you spoiled piece of shit!!! Get the fuck outta here before I back hand your remedial ass!!"

How would I know by All State 1B June 23, 2013