Darebin's first Liberal councillor has been sacked as deputy mayor, and could face further disciplinary action, after making a "vile" and "offensive" comment about Minister for Local Government Natalie Hutchins on social media.

A week ago, Cr Oliver Walsh briefly took to Facebook, writing "Fat Natalie looking Gaddaffiesk today."

Darebin councillor, Oliver Walsh, who has been sacked as deputy mayor after calling Local Government Minister Natalie Hutchins "fat" on Facebook. Credit:Social Media

The post came on the same day the minister announced that Geelong council would be sacked due to its dysfunction and "deep-seated culture of bullying".

The comment was posted at 11.23pm last Tuesday and was reportedly live for just a few seconds before it was deleted by Cr Walsh - yet it was still enough time for someone to take a screen shot of the comment.