IYDK

If you didn't know, or In case you didn't know

George Bush's birthday is July 6th, IYDK.

IYDK by Leo_Arthur January 6, 2007

iydk

Stands for "Incase you didn't know".
To imply something useless/things that doesn't concern anybody.

Guy #1 - iydk I just came to midget porn.
Guy #2 - Thanks for letting me know,concerns me alot.(sarcasm)

iydk by HazePoniPoni February 18, 2015

iydkmigthtky 

A song by Type O Negative. It means If You Don't Kill Me I'm Going To Have To Kill You

Person 1: Have you heard of Type O Negative?
Person 2: Yeah! I love their song IYDKMIGTHTKY

iydkmigthtky by ahnyonghasayyo January 31, 2019

iydknyk 

This is a variation of IYKYK or If You Know You Know, but just adding
"If You Don't Know Now You Know"

Birds are really just little dinosaurs, IYDKNYK

iydknyk by sniggitysnags January 11, 2023

Iydkiwty 

Iydkiwty is an abbreviation for If you don’t know I will tell you in which you can say to someone without anyone knowing that you don’t know

Omg look at this do you remember? Iydkiwty
If you say yes please they will tell you

Iydkiwty by Clickherald January 8, 2020

iydkysk

if you don't know you should know
from kacey Musgraves tweet

in a text conversation yo do u know who that kacey musgraves chick is? iydkysk

iydkysk by beachy28 February 24, 2021

iydkwimywkwim 

if you don't know what i mean you won't know what i mean

unnecessarily long acronym

"....iykwim."
"huh?"
"iydkwimywkwim."
"huh????"

iydkwimywkwim by acwpwwelafanraa April 24, 2025