Pwibs or Pwb is a term used for people who bleed/menstruate. This term is used to sound friendly and all inclusive for those who experience menstrual cycles, whether they be cisgender women, transgender men, non-binary, etc.
History
The term Pwib was coined on October 26th, 2020 by Twitter user CriticalCrew10, or Fandom User CryptoCrew. It was made as a response for the uproar over the Tampax twitter account making an all-inclusive tweet.
Flag
The Pwib flag was made on November 1st, 2020 by user Anderson. The blue represents masculine pwibs, the pink represents feminine pwibs, the purple represents non-binary and genderless pwibs, and the shades of red represent menstruation.