sca·tol·o·gy 
(skă-tŏlə-jē, skə-)
(skă-tŏlə-jē, skə-)n. pl. sca·tol·o·gies
1. The study of fecal excrement, as in medicine, paleontology, or biology. Also called coprology.
2. Obscene language or literature, especially that dealing pruriently or humorously with excrement and excretory functions.
scat′o·logi·cal (skăt′l-ŏjĭ-kəl), scat′o·logic (-ĭk) adj.
sca·tolo·gist n.