
1) Ancient Roman religion 2) British slang for excrement 3) Doody 4) Latin girl name 5) Slang for heroin
Found on
https://www.crosswordclues.com/clue/caca
[mythology] In ancient Roman religion and myth, Caca is the sister of Cacus, the son of Vulcan who stole cattle from Hercules during the course of his western labors. Caca betrays her brother by revealing the location of the cattle to Hercules, who had in turn stolen the cattle from Geryon. According to Lactantius and Servius, she was culti...
Found on
http://en.wikipedia.org/wiki/Caca_(mythology)

Caca is British slang for excrement.
Found on
http://www.probertencyclopaedia.com/browse/ZC.HTM
No exact match found.