Define "Hostile Work Environment"

“Smart said she was introduced on her first day of training as ‘the chick who is doing this as a hobby and doesn’t need to work due to her husband’s financial situation.’ Smart said colleagues accused her of having affairs with other firefighters and refused to work with her because she was a woman. She said a male co-worker walked in on her in the shower in 2007, and when she requested a lock on the bathroom door her supervisor gave her a broom handle with ‘Smart Wedge’ written on it. Smart also said she once found a missing bathing suit stained with semen and stashed in a locker.”
 — Firefighter gets $700,000 jury award.