An abbreviation of the phrase "Don't Know," used when someone terminates a transaction by walking away from it acting (deceptively) like they were never involved.
I lost 10 grand because my client placed a trade, and then when it came time to settle, he completely DK'd me!
by Kronion0 June 2, 2021
Get the DKmug. 
What happens to you after you lose all motor function in your back after a combination of two Adderalls and a copious number of whiskey diets.
by Jeggy Tootleman June 19, 2018
Get the DK Leanmug. 