Definitions by Nkmf

NKMF 

used in germany and means "NackenKlatscher Mit Faust".
in Nackenklatscher means a slap on somebodys neck and "Mit Faust" means with the fist
so a slap on the neck, but with your fist.

Imma give that dude a NKMF

NKMF by Nkmf May 30, 2018