What is the part of the food that is not digested? this is a one word answer

Um yea this might be weird to say up here but me and my girl got freaky and shoved a bottle up my but thole and now is stuck. so what do i do?

Lina went in camping woods. while camping, she accidentally touched a strange planet. her hand immediately started itching, and her skin erupted in hives. after she gets home, her grandmother cooked some oatmeal, wrapped it in a cloth, and put it on lina affected hand. lina’s grandmother followed a traditional what remedy.

The centers for*blank* control and prevention safeguards americans from health, safety, and security hazards and threats.