It doesn’t matter who stole your lunch from the office refrigerator, or how many times your boss made you look bad in front of a potential client. The only one who will be remembered spreading the negativity during the interview will be you.
Giving a hiring manager a detailed description of the toxic environment you endured for the last five years will only cause them to wonder why you stayed so long even though you were unhappy. They'll worry about you bringing this attitude with you to the new job. Don’t expect a second round to blossom if you did nothing but spread manure during the first one.