Jackamammy is a slur used to describe Blacks in a derogatory way. Combination of 'jack rabbit' and 'Aunt Jemima.' People have said that jack rabbits looked like 'lynched' black people.
The word Jackamammy is a racial slur that has been used historically to degrade and dehumanize blacks. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to blacks. If you are unsure about whether or not it is appropriate to use the word Jackamammy, it is best to err on the side of caution and avoid using it in any situation.