The Speaker of the Northern Territory's Parliament has launched an extraordinary attack on federal Minister Kevin Andrews over his comments on de facto couples, calling him "pooncy" and suggesting he should be castrated if he tried to tell people how to live their lives.

Country Liberal Party (CLP) MP Kezia Purick made the comments on her Facebook page on Tuesday night and continued her spray when interviewed on 105.7 ABC Darwin this morning.

Mr Andrews, who is the Minister for Social Services, recently suggested that people in de facto relationships were more likely to break up than those who were married.

Ms Purick took offence at the comments.

"Listen here you pooncy, pasty-faced person from some pissant place that no one cares about, half my electorate are probably in de facto relationships and they are happy, normal living people who do their very best for their families and their communities," Ms Purick said in her Facebook post.

"They work hard, try their best and believe that you judge people by their deeds not some piece of paper.

"I have the same support for people who are married or want to get married in the eyes of a church or the law, that is their choice and I respect it.

"Go away Kevin Andrews and if you ever come to the rural area and try to tell us how to live, three words for you, green rubber ring!"

A green rubber ring relates to a device fitted over the testicles of animals, which results in castration.

Kevin Andrews' controversial comments

Mr Andrews created controversy by saying there was a higher incidence of de facto relationships breaking up than married couples and that married couples were more stable.

An ABC Fact Check found it was true that de facto relationships were less stable.

Ms Purick spoke to 105.7 ABC Darwin this morning and said Mr Andrews was using statistics to try and push his religious values onto others.

NT Speaker Kezia Purick's spray against Federal MP Kevin Andrews ( Facebook )

"Lots of people may be married and still not be happy. Lots of people in de facto could be very happy and not married," she said.

"Kevin Andrews is once again putting his bib in trying to force his particular fundamental Christian values on how we go about living our lives.

"I am getting fed up with him coming into the Territory and trying to tell us what we should do and how we should live."

She also highlighted that Mr Andrews was the MP that brought a private members bill to Federal Parliament in 1996 that resulted in the NT's voluntary euthanasia laws being overturned.

Asked to explain her comment about Mr Andrews getting a "green rubber ring", Ms Purick said it was a saying, before she launched into a detailed description of how the device works.

On her Facebook page, other people appeared to overwhelmingly agree with Ms Purick's sentiments.

"You give it to him Kezia, he doesn't know what end his head is at," one person said.

"It's about time these people were taken to task for trying to impose their fundamentalist Christian values on the population at large," another said.

On talkback radio one man also offered support for the castration of Mr Andrews.

"If he ever comes up here, I will pretend to hold him while she pretends to put it on," he said.

A spokeswoman for Mr Andrews said the Minister would not be responding to Ms Purick's comments.

Ms Purick's past sprays

The comments about Mr Andrews are not the first time Ms Purick has courted controversy for views about her own side of politics.

In August she attacked fellow CLP politician Dave Tollner over derogatory comments Mr Tollner reportedly made to a gay staff member.

"The world that David lives in is clearly not the same as mine," she wrote at the time on her Facebook page.

"I do not joke about people's sexual preferences, I do not joke about race, colour or creed, and I do not joke about domestic violence with either my family (or) friends."

Last year she reportedly said talking points sent to CLP politicians to use in the media were "incorrect, inappropriate and misleading".

In 2012 she asked whether the then CLP leader and former NT chief minister Terry Mills and his cabinet had "lost their collective minds" over moves to cut the number of professional firefighters in her electorate.