bodily function

NOUN
15 LETTERS · STARTS WITH B

bodily function is a valid 15-letter word worth 25 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
B3O1D2I1L1Y4F4U1N1C3T1I1O1N1
3 + 1 + 2 + 1 + 1 + 4 + 0 + 4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does bodily function mean?