A M.a.r.i. is a mysterious alcohol related incident.
M.A.R.I. -pronounced as (mary).You go out drinking one night and you get a little drunk. The next morning you wake up and something is sore. You check your body out and you have a huge bruise or cut in a strange area. You try to remember this happening at some point last night and just can't figure it out. You are diagnosed with a M.A.R.I..