The acronym for "driving while Mexican", a joke phrase commonly used to satirize the
profiling stereotype/reputation of law enforcement in rich caucasian (and right wing) cities and suburbs.
Also see:
DWB (
driving while black)
My buddy
Lupe was driving through north
Clovis, California in his lowered 80's Monte Carlo with the giant Raiders sticker on the back when he was pulled over for DWM and they searched his car and found his pipe and
bag of weed.