look up any word, like donkey punch:
 
1.
acronym for "don't fuck with us." common tag used in gang graffiti or in hashtags if you wanna seem like a badass.
Dylan: "yeah man, I just saw his pic on Instagram. what a joke."
Bob: "I seen that shit, he hashtagged dfwu like he's hard."
by mybfizacrip November 28, 2013