Q: Is Jannah Just a place for Eating, Drinking and intimacy? what happens to bodily waste?
A: Jannah is place where there are things you have never imagined or seen. Although you can eat, drink, be intimate till your hearts content,It is a place depending on your personality.
If eating , drinking, intimacy is all that you desire for, that is all you get.However if you are a curious person or someone who has thirst for knowledge, you can achieve the best of it. The prophet said: "The people in the higher levels will be seen by those below them as if they were looking at a star rising on the horizon- Another Narration: "The people of Paradise will look at the people dwelling in the chambers above them in the same way that people look at a brilliant star shining far away on the horizon, in the East or West, because of their superiority [in reward] over them."
Food will be fully absorbed. There is no waste in heaven. Waste is for the state of Asfal- Asafeleen ( lowest of the low) which is in dunya.
Virgin Mary's food from the heavens transformed into the light of Iman (belief)