We are presuming you meant dimples .
Dimples are really a 'cute' birth defect.
When muscles in your face are shorter than they should be to allow your facial skin to lie flat, it causes your skin to 'pucker' or 'dent', becoming even more noticeable when you smile. Younger people seem to have them alot more frequently than adults. Sometimes the muscles responsible for the dimple, grow larger as you age and the dimple then disappears. When you are hungry, the body begins to prepare for the arrival of your next meal. As this foodstuff moves along through you intestines, it makes 'noises' because of the air and fluids it contains.