Hashtagging

The most efficient way for two women to pee in the same toilet. One woman sits on the toilet while the second woman sits on the first at a 90 degree angle, forming a hashtag or pound sign.

Also known as female sword fights.

Karen: I have to pee.
Lisa: Me too but there’s only one toilet available.

Karen and Lisa: Hashtagging it is! (as they high-five)