What does it mean when the DA files motion to revoke suspended sentence?

It means the state believes there was something you were supposed to do, and did not do it, or did not report as to it being completed, during your suspension period. Or, that you caught a new charge, which was something you were not supposed to do while on a suspended sentence. It means you need counsel, sooner rather than later, to see if he/she can help minimize the potential of you going to prison. It means you are likely to be picked up again soon, if you do not first obtain counsel and arrange a surrender and either a new o.r. bond or do a walk-through and bond out. Time to start contacting counsel. As in now, not next week, not tomorrow.