Abreviation of Fuck My Life Its Monday
Usually used when someone wakes up on a monday morning or when someone is with their freinds and it suddenly dawns on them it is a monday
Person 1: Hey man, wanna go to McDona...
Person 2: Shiiiiiiiiiiiiiiittttttt!!!!
Person 1: What?!?!?!?
Person 2: FMLIM, I hate mondays -.-