Sentence:  The <WSD>incel</WSD> ideology has already inspired the murders of at least sixteen people. Elliot Rodger, in 2014, in Isla Vista, California, killed six and injured fourteen in an attempt to instigate a “War on Women” for “depriving me of sex.” 
Meaning of the word marked with <WSD> tags:  A member of a mostly online subculture of people (typically misogynistic and straight men) who define themselves by being unable to find a sexual relationship despite desiring one.