Shorthand for "demeaning cinematic image of blacks"; it comes from the
stage name of
actor Stepin Fetchit. He worked in
films of the 30s and 40s as a
stereotype-on-two-legs: craven, lazy,
subservient, shufflin'. He wasn't alone, but he gained the most
fame. In later decades, he got a chance to play decent roles. Ever since the TV adaptation of
Amos and Andy got cancelled amid protests (valid or not), black stereotypes have become more
politically correct, but
stereotypes remain.