smear word
nounDefinition of smear word
: an epithet applied to a person or group in order to degrade, blacken, or make unjust or unfounded accusations
time was … when independents in politics were rare and mugwump was a smear word— W. E. Binkley strained relations may be expressed in clique formation, subtle whispers and shrugs, smear words, discrimination in clubs and dances— F. J. Brown & J. S. Roucek