ca-ca
noun
1
excrement. Probably from Spanish children's speech; used by non-Spanish speakers. Sometimes seen spelt as 'kaka' or other such variations US, 1952.
2
nonsense US, 1980.
3
marijuana, especially if poor quality, adulterated or fake US, 1969.
4
heroin, especially low quality heroin US, 1986.
5
drugs, not necessarily heroin US, 1995