Acronym for "Missing In Action". Though the term has military origins, it is also used to simply imply that a person hasn't been seen in some period of time.
"She's MIA lately."
by IGBASS April 14, 2016
Term for a person, preferably a girl, that always ends up really salty and her soul ends up being "missing in action" (hence the name MIA)
by zuhazana September 05, 2017
by sexy.bitch.27 March 11, 2015
by Rosaax January 11, 2019