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.
Somebody (typically a woman) making assumptions that everybody around them know, understand and agree with what they are thinking. This leads them to continue a conversation with this unexplained assumption which sounds odd and unfounded.
Woman: Since I could not reach you yesterday, Sandra had to ask Cindy for help who responded promptly. It wasn't nice of you.
Man: Hey, quit Womansuming and tell me who Sandra and Cindy are and what the situation is... or was.