Any person who shall falsely utter and speak, or falsely write and publish, of and concerning any person of chaste character, any words derogatory of such person's character for virtue and chastity, or imputing to such person acts not virtuous and chaste, or who shall falsely utter and speak, or falsely write and publish, of and concerning another person, any words which from their usual construction and common acceptation are construed as insults and tend to violence and breach of the peace or who shall use grossly insulting language to any person of good character or reputation is guilty of a Class 3 misdemeanor.
The defendant shall be entitled to prove upon trial in mitigation of the punishment, the provocation which induced the libelous or slanderous words, or any other fact or circumstance tending to disprove malice, or lessen the criminality of the offense.