You know what? FUCK YOU! 

The best way to end an arguement. You can also follow up with a "SUCK MY MOTHERFUCKING DICK."

Man: I honestly don't care if your child is gonna die.
Man2: You know what? FUCK YOU!

You know what? FUCK YOU! by OMG LOLZ!!!!1111+shift!!!! March 20, 2005

you know the drill 

an expression meaning "you know what to do, no questions required".

answering machine greeting: "yeah its hipster, you know the drill."
.... beeeep!

you know the drill by hipster June 2, 2004

you know he had to do it to em 

when a white guy from florida decides to hit all his viewers with his “swagger” with a majestic pose holding his knuckles and finding a way into your girl’s heart

can be also used as a compliment on someone’s picture or as an insult (you can never really tell it apart though)

A: yo did you see that kid’s post from florida where he lookin fly as balls?

B: yeah man, you know he had to do it to em

you know he had to do it to em by theleslor May 20, 2018

you know that i know that you know that i know 

When you and/or your friend type something in a group chat that is related to something only you two know so you send the you know that i know that you know that i know and confuses everyone else

Friend 1: has crush on John

*in le group chat*
Friend 1: why the hell is John's name in there
Friend 2: you know that i know that you know that i know
Friend 1: ahh yes
Everyone else: i am confusion

you know that i know that you know that i know by RapoloMan January 10, 2020

you know what else is big? 

to know what else is big, like bang chan’s feet

bang chan: “you know what else is big?”
*looks down*
“my- my feet!”

you know what else is big? by shineestar February 24, 2021

you know you... too much if 

The "You know (enter activity) too much if" game is the product of various blogging/message board occurrences.

Usually, one initaiates this post with a common obsession/interest of the group such as a video game, book, etc.

Here's an example of you know you... too much if.

You know you've been on Urbandictionary.com too much if:

-you check your email only to see if there are any new entries that day

-you make new entries to see how many people will give you a thumbs up

-you make an entry that explains the "you know you _____ too much if game"

You get it, right?

you know you... too much if by Inflicted February 21, 2006

you know how i know you're gay? 

1- The preferred method of asking someone if they are aware of the signs and tell-tale indications that make another aware of the person in question's homosexuality. This phrase was made famous in the movie, 'The 40-Year Old Virgin'.

PAUL: "You know how I know you're gay?"
GREG: "How?"
PAUL: "Because you have a triangle rainbow bumper sticker on your car that says, 'I like balls in my face.'"
GREG: "That's gay!?"

you know how i know you're gay? by PopFreeMonkey March 2, 2007