Answered by Adele, Hiring Expert at ADP, on Friday, April 8, 2016
Unfortunately, we have all experienced bad bosses or know someone who has. When going on an interview, it is okay to share a bad experience, but it must be done in a positive way. If you can be objective, explaining what you learned from that experience, you can talk about that situation and how you handled it in a positive way that reflects your maturity and willingness to "let it go". Since then you have attended college and have experienced more situations, good and bad, that you have learned from. Sometimes, interviewers are looking for culture fit as much if not more than knowledge, experience or skills. Managers often say that they can teach someone the job, but can't teach people skills. They want to know that you have a positive attitude, are eager to learn and grow and help the company succeed.
As far as the application, you may only need to indicate the date of hire and date of termination. If they ask for a reason why you left the company you should be honest, but may be able to simply indicate "terminated" which could apply to many reasons why you left. Also, companies are becoming a lot more sensitive about addressing harassment claims, and if an interviewer is not sympathetic to your experience you may not want to pursue that opportunity anyway.