bodily functions
euphemism The normal workings of the body, especially those usually done in private, such as urinating or defecating. When you have three sons, bodily functions are a common topic of discussion around the house.
function as (something)
To have a particular purpose or fill a certain role. Mrs. Smith will function as your homeroom teacher for the rest of the year now that Mrs. Jones is on maternity leave.
bodily functions
Euph. anything the body does automatically or as a normal occurrence, especially urinating and defecating. The dog needed to go outside and perform her bodily functions. It is not polite to discuss bodily functions at the dinner table.
function as
v. To serve a purpose or play a role similar to that of something else: The beaks of some wading birds function as spears for catching fish.