FMZ 

acronym for fast moving zombie
most notably found in films like 28 days/weeks later

dude 1: quick! zombies! whats your move man?
dude 2: smz's or fmz's?
dude 1: fmz's.
dude 2: oh man, we're screwed.

FMZ by dsun December 28, 2008

FMZ 

Abbreviation for an amateur "fan magazine." See also fanzine. Outside of sf fandom, "fan magazines" were magazines published in the 1930s and 1940s about the stars of movies.

I enjoyed reading your fmz.

FMZ by The Doctor September 22, 2004