Slang dictionary
iykyk
What does iykyk mean?
The abbreviation iykyk stands for the phrase if you know, you know. It is used after a statement or some form of content as a way of indicating that it is an inside joke or a reference to something only a select group of people know and understand.
This is usually done without providing any further explanation.
The abbreviation iykyk is typically used in texts and online posts, often as the hashtag #iykyk. Even though it’s abbreviated, it’s often read out as the full phrase.
It may be used alongside inside jokes, innuendos, obscure references, memes, seemingly innocent photos, and many other types of content that are directed at people who understand the joke or reference being made.
Example: Atlanta Falcons fans still have 28-3 nightmares. #iykyk
Where does iykyk come from?
Iykyk is an abbreviation of the phrase if you know, you know. The abbreviation iykyk has been used on social media since at least 2009, with use growing in the mid-2010s.
deeper than atlantis (iykyk)
— NT (@NathanOnly) August 13, 2009
Examples of iykyk
Who uses iykyk?
The abbreviation/hashtag iykyk is most commonly used in online posts, typically as a way to indicate that it is an inside joke or a reference to something that only certain people will know and understand.
Nah this ice storm is still nothing compared to that 09 one. IYKYK
— Coach Journey (@DijonJourney) February 15, 2021
Shades of Jim Harbaugh-Aaron Bailey on that final play. IYKYK.
— Matt Fortuna (@Matt_Fortuna) September 17, 2022
Not Wordle, just your childhood.
⬛️⬜️⬛️⬜️⬛️⬜️⬛️
⬜️⬛️⬜️⬛️⬜️⬛️⬜️#IYKYK #CartoonNetwork— Cartoon Network (@cartoonnetwork) January 28, 2022
Note
This is not meant to be a formal definition of iykyk like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of iykyk that will help our users expand their word mastery.