Taking to Twitter on Thursday, the 2GB host slammed the City of Sydney's proposed Cloud Arch sculpture, a 58-metre artwork that will frame the city's Town Hall.

It's a project backed by Cr Moore, and has been at the centre of a long-running battle between the city's councillors. Last week, it was revealed the structure's revised cost had increased from $3.5 million to $11.3 million.

"$11.3m - can you believe it? You can guess what many people would rather hang 58 metres over George Street...and it's not a Cloud Arch," Jones published to his 8000 followers.

People were quick to allege the man, who describes himself online as "Australia's most influential and respected radio broadcaster", was once again inciting violence against women.

While others suggested he was referring to a rainbow flag or Canberra's famous Skywhale, a controversial hot air balloon.

Thursday's tweet is the latest recorded incident of the self-proclaimed feminist using visceral language when referencing issues championed by some of the country's female politicians.

Last month during a fiery exchange with NSW Premier Gladys Berejiklian he warned that her head "was in a noose" over her government's mining policy in the Liverpool Plains.

In 2012, after numerous advertisers and sponsors threatened to abandon his radio show, he apologised to former prime minister Julia Gillard after he suggested she should be "shoved" in a "chaff bag" and taken "far out to sea".

In the same speech, which was secretly recorded at a Sydney University Liberal Club President's dinner, he suggested Gillard's recently deceased father had "died of shame".

Jones has also compared previous NSW premier Mike Baird to Russian President Vladimir Putin.

Fairfax Media has approached Clover Moore for comment.

Fairfax Media, publisher of this website, is a majority owner of 2GB.