A buzzword first used for a girl but now used by feminazis and cucks for the people who don't agree with them. the literal meaning of this word is involuntary celibate, meaning the people who cant have sex despite the "desires(as the feminazis and cucks/whitenights claims)" . Although the has a deeper meaning, current social structure is twisted in such a way that man or woman without a sexual partner considered a loser even if they don't want to have one. the current effect of this structure is that men has to agree with everything feminists say otherwise he can't have sex with them (which itself is a bit misogynistic, because it indicates that only "essential" thing women has to offer is sex)
this is the worst side of humanity, one side there is self centered, attention seeking, power hungry feminazis/misandrist (but cloaked as MODERN FEMINISTS ) and the other are angry people a lot of them are actually misogynist and racist and dangerous.
guy 1 : hey, A girl on the internet called me incel even though my arguments was based on facts
guy2 : don't worry, it's the habit of some dumb people who are living in today's super easy environment cant stand facts if it hurts their belief.