a minced oath (pseudo profanity or expletive deletive) in the fashion of altering traditionally obscene, blasphemous or words or phrases otherwise unacceptable for public use and discourse--jeez louise for jesus christ or freaking for f*cking. mammer jammer is a replacement for mother f*cker. Used in blaxplotation films and made popular by the stevie wonder song of the same title.
'she's a bad mammer jammer, just as foxy as can be..."
by jbruen December 07, 2009