ydkwym 

you dont know what your missing

you havent tried it? ydkwym

ydkwym by stevo85 May 6, 2009

ydkwyff 

The abbreviation for You Don't Know Who You're Fighting For. The title of a song by the Montana band Frosted Grinch.

Music buff: Hey, did you hear that new song by Frosted Grinch?
Clueless person: No, what's it called?
Music buff: YDKWYFF

ydkwyff by hh8450 January 27, 2008

YDKWYDK 

Abbreviation of the phrase “You don’t know what you don’t know”. Phrase coined by Martiros Aghajanyan quickly became popular due to his distinctive tempered pronunciation of it. Quickly gaining popularity in Los Angeles area it is often used to refer to that of what we are unaware or uncertain of. The phrase is similar to Donald Rumsfeld’s quote in it’s literal form “We don’t know, what we don’t know”, but is more synonymous to Charles Dickens's “Never say never”. It is often accompanied with a slightly wiggly upwards movement of the index finger and is predominantly used in a sarcastic context.

Synonyms: You never know, Uncertainly, Never say never, Don’t say “HOP” before you jump (Slovak proverb)

Official homepage of YDKWYDK organization is ydkwydk.org

Narek: Trump will never become the President of US.

Martiros: YDKWYDK! You don’t know what you don’t know! ☝🏻

YDKWYDK by ArmiusXelokius May 29, 2018