What does bad mammer jammer mean?

bad mammer jammer meaning in Urban Dictionary

a minced oath (pseudo profanity or expletive deletive) into the manner of changing traditionally obscene, blasphemous or terms or phrases usually unacceptable for public use and discourse--jeez louise for jesus christ or freaking for f*cking. mammer jammer is a replacement for mom f*cker. Utilized in blaxplotation movies and made preferred because of the stevie wonder track of the same name.