A shocking video has been released of a female diner unleashing an expletive-ridden rant at a couple kissing in a restaurant.

The video starts with the woman, wearing a red San Francisco sweater, arguing with a cashier about the couple at a restaurant in Santa Monica, California.

The boyfriend of the woman filming the video tells the angry woman to leave, to which she replies: 'Excuse me! This is a place where you eat, not where you make out. Go get a room!'

'You're a sl** - go make out outside. You're a prostitute - don't you have any manners? Why don't you leave b****!'

She adds: 'I can't wait to report you to the police.'

As the woman approaches the couple, her boyfriend says: 'Step the f*** back!'

The woman angrily shouts: 'You're f****** your girlfriend in a public restaurant acting like a prostitute.

'You're sexually harassing me - you and that sl**.'

She then turns to the cashier and says: 'I want my money back.'