what does tdee number mean?

My tdee(tedee?) Number is 3762. What dpes that mean?

Total Daily Energy Expenditure or how many calories your body needs in a day according to your activity levels,

My tdee(tedee?) Number is 3762. What dpes that mean?

In simple terms, it is the estimated number of calories you burn in a 24 hour period. If you eat that number of calories every day, then you will not gain nor lose weight.