what does this mean? i mean i dont count it, i just count the straight up calories, but was curiouse

It's the number of calories that are coming from fat in the food item. Calories can come from three sources - fat, protein, carbohydrate.

Some people pay attention to fat grams, fat calories, or percentage of calories from fat.

p.s. you need fat in your diet, afaik especially for a woman or severe lack of it can cause menstruation issues