The Liberal candidate for the WA state seat of Mandurah has quit over abusive social media posts referring to women as "office Nazis" and Prime Minister Malcolm Turnbull as a "laughing stock".
David Forbes wrote "Don't forget to watch out for the Office Nazi - often disguised as a woman!" with a link to a story about toxic employees.
He also posted abusive messages about female ABC journalists and former innovation minister Wyatt Roy.
Mr Turnbull was also referred to as egotistical and without any achievements as prime minister.
Mr Roy, who became an MP at 20 before losing his seat last year at 26, was also targeted, being told to get a real job and learn the "limitations of articulate BS".
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
ABC journalists covering US President Donald Trump's inauguration were "full throated dumb female pundits" who displayed "ignorance and prejudice", he tweeted.
The Liberal Party has not commented other than to say it is looking for another candidate for Mandurah, which has been held by Labor's David Templeman since 2001.
He won with a margin of 7.7 per cent in 2013.
Premier Colin Barnett said he understood there had been a "falling out" between Mr Forbes and his campaign team and "sometimes that happens".
"Scrutiny is thorough but sometimes people say things that others may find to be wrong, but I remind you he stood aside - he wasn't sacked in any sense." Mr Barnett told reporters on Tuesday.
The Liberal candidate for Midland Daniel Parasiliti kept his position when old Facebook posts emerged last year including an abusive vulgar sexual comment to a woman who challenged his negative comments about an apology to the Stolen Generation.
