Rappers Insane Clown Posse have been slapped with a wrongful termination lawsuit from their former publicist amid allegations of harassment.

Andrea Pellegrini, who also served as the duo's lawyer, claims she was "mocked" and "belittled" and became "the subject of sexual advances" at the band's Psychopathic Records offices in Michigan, adding she was fired after reporting the acts to label bosses.

Pellegrini has listed a series of reported incidents in her court papers, dating from 2009 to her termination in November, 2012, including a number of run-ins with label employee Dan Diamond, aka Dirty Dan.

She alleges Diamond would "yell and demean" her on a "regular basis" and call her a "b**ch", while he would often make inappropriate sex comments towards her her and gifted her with sex toys.

Pellegrini goes on to claim that she was asked to do "illegal and/or unethical things" during her employment, including sourcing automatic submachine guns for a photo shoot.

Both rappers Joseph Bruce, aka Violent J, and Joseph Ulster, aka Shaggy 2 Dope, have been named in the lawsuit, alongside Diamond, company president William Dail and Pellegrini's former supervisor, Robert Bruce.

She is demanding compensation for emotional distress, pain and suffering, in addition to legal fees and medical expenses.