For those who don’t know:
What is the incel movement?
Incel is short for involuntarily celibate. The term rose to prominence because of its adoption by a subsection of the manosphere, a loose collection of movements united by misogyny that also includes some mens rights activists, pick-up artists, and Mgtow/volcel heterosexual men who refuse to have sex with women for political reasons.
Men who identify as incel tend to congregate on a few forums, including the message board 4chan, the forum SlutHate and, until the community was banned from the site, the incel page on Reddit.
They are united by the fact that women will not have sex with them, usually attributed to shallow obsessions with looks or superficial personality, and by their hatred of Chads and Stacys, the men and women who have sex.
Frankly I had just learned of this term only yesterday via a late afternoon local talk radio show.