Needing their purses and bags to take up a whole seat. They actually are taking up 2 and maybe more full seats when men are just taking 1.0001 seats.
Guy: Watch out for those women spreaders you might not get your seat
or
Feminists mind: Men should not be able to man spread so i shall start Women Spreading
The act by women to fill more than one seat, either by putting bags on the other seats or putting their feet on the seat across them. Way more common than manspreading - and more obnoxious - but feminists think it's AOK.