I remember a private beening told to go to the supply Sgt. and to request 100 feet of MLR. The private did as he was told, and the laugh was on him.LOL The true meaning (as I remember) was the line of the shirt, buckel, and trouser fly. (Main Line of Reisitance) Oh yea and GSgt. Carter told us that only females ware PANTS. MARINES ware TROUSERS.