Can also be referred to as a 'slag' or 'trampy whore' - A woman with no class and most probably filthy.
"That is one loose woman"
1: A woman with loose sexual morals, pl loose women
2: Loose women - A show on ITV with a bunch of slags talking shit at lunchtime
1.(pl) Essex is full of loose women
2. I watched loose women today with my mum, it was the biggest waste of 30min