To be "M.I.A" means to be "Missing In Action". This refers to when someone disappears without telling anyone and they begin to wonder where they are, but have no idea where.
Friend 1: Have you heard from Jack recently?
Friend 2: No, he's been M.I.A since last Tuesday.
Friend 1: Wait really? No one knows where he is?
Friend 2: No, he's been M.I.A since last Tuesday.
Friend 1: Wait really? No one knows where he is?
by Disappointmxnt July 11, 2019
Get the M.I.Amug. In Australia the term M.I.A. refers to the Murrumbidgee Irrigation Area. A region of vineyards, orchards and ricefields around Griffith where the influence of Hollywood and north American ideas is not so pervasive.
by Roderick Myer July 31, 2006
Get the M.I.A.mug. Vloger who is slacking :"sorry y'all that I been M.I.A.but I'm back and I'm better I hope you ready for this exclusive content.
by yogotti25 February 19, 2019
Get the M.I.A.mug. A Drum n bass dj collective started in 2006 by alfonz de la mota and m1d1, this is the largest drum n bass collective in the united states and has members all over america.
by ALFONZ DE LA MOTA January 18, 2009
Get the M.I.A.mug. 
removing yourself from toxic people/social media/distractions, focusing on yourself, becoming successful, developing good habits
“Yeah, what have you done lately? I didn’t any posts on Facebook,didn’t hear anything from you”
“ I’m going M.I.A for a while, just trying to focus on my career “
“ I’m going M.I.A for a while, just trying to focus on my career “
by Mălina B February 12, 2018
Get the going M.I.Amug. "America is pretty much M.I.A. from Sudan."
- Hasan Minhaj in the Patriot Act episode: Protests in Sudan (12:38)
- Hasan Minhaj in the Patriot Act episode: Protests in Sudan (12:38)
by DefDrAbba July 17, 2019
Get the M.I.A.mug.