A nasty 1940s and 1950s racist stereotype of African-American or Carribean males as clumsy but obedient willing servants to Caucasians. A Stepin Fetchit stereotype can also be recognized by its mangling of words and constant fearfulness. A good modern example of a Stepin Fetchit racist stereotype occluded in transparent metaphor would be Jar Jar Binks of SW:The Phantom Menace.