DN in YM

Stands for Deez Nuts in your mouth. Derived from Dr. Dre’s 1992 hit but revived by the popular social networking app vine

Used to show disrespect or lack of care when someone speaks to you.

Hey bro, why didn’t you come over today?
Because you had DN in YM

Sorry I couldn’t come over today, I was busy
Busy with DN in YM