when some one in a fight gets grabbed by the hair and dragged on the floor

when you're hungover as shit after a spending a night drunk as a skunk

After a girl has given a guy a bulimic job, she then eats up the throw-up she just regurgitated off of his genitals. Bulimic job and mop the floor can continue for several rounds.

When you put your girl on top of the kitchen counter and perform oral sex and she squirts all over the floor. And that is the reason you have to mop the floor.