Could one also say: " On to říká o každých holkách " ?
No that sounds completely strange. In a similar ways as "about every girls".
Thank you, VladaFu, your example makes it very clear !
Would "o všech holkách to říká" not be acceptable? Similar word order to "o ženách stále mluví..." that was encountered in a previous section?
In some specific contexts it is possible. If you stress the first word enough, it means the same as "Říká to o všech holkách.". You could also just stress VŠECH.