A last-resort term used desperately to insult a male who is defeating a female fairly and squarely in a debate or an argument. Popularized by tennis champion Serena Williams.
Carl: Ur mom gae.
Crowd: OOOOOOHHHHHHH!!!!!
Maria: Heyyyyyy... you're being a sexist umpire!!!
Crowd: Oof... shots fired
Carl: *retreats in order to salvage what dignity he has left*
A saying that woman can use to get out of trouble without any problems.
"Stop talking to me That's Sexist loser."
A Star Wars 'fan' who hates certain female characters of Star Wars media such as Rey Palpatine and Ahsoka Tano for simply exiting due to their gender as women. This is not to be confused with someone who hates Rey simply because of the very real character flaws she is plagued with.
"Why does this douche hate Ahsoka Tano so much. Are they a Star Wars sexist?"