NSW Transport Minister Andrew Constance has suggested three rebel MPs should get "back in their box" after they called off a "laughable" leadership spill motion against the state premier.
Gladys Berejiklian, meanwhile, told MPs it's business as usual following the drama on Tuesday morning.
Tanya Davies, Lou Amato and Matthew Mason-Cox on Monday night announced they would call a spill motion against the premier over her handling of a private member's bill to decriminalise abortion.
They said amendments they wanted had been rejected in full "or in part with vague undertakings for further discussions".
But in a joint statement released before 8am on Tuesday, the MPs said they would withdraw the motion after receiving "confirmation that further concessions will be forthcoming in relation to the amendments to the abortion bill".
The backdown came after senior Liberal ministers came out in support of Ms Berejiklian before a party room meeting on Tuesday morning.
Mr Constance said there had been "an incredible endorsement of Glad overnight", and the three MPs didn't really threaten her leadership.
"I mean look at what happened. I mean seriously, it's just laughable," Mr Constance told reporters on Tuesday.
The transport minister said most members of the government had said "this is ridiculous, back in your box and, you know, let's get on with it."
Another Liberal MP confirmed the premier told Tuesday's "non-event" and "anti-climax" party room meeting it was back to business as usual.
The MP told AAP the three rebel MPs attended the meeting, but Mr Mason-Cox - who's "normally quite robust" - sat "very diminished in the background".
The trio had tried to reframe the abortion bill issue to become one about leadership because it was the only way they could derail it, "and we stared them down", the MP said.
Attorney-General Mark Speakman, Police Minister David Elliott, Families and Communities Minister Gareth Ward, Deputy Premier John Barilaro and Treasurer Dominic Perrottet were among those to publicly back Ms Berejiklian.
Mr Ward characterised the three MPs as an "arrogant" fringe.
"The reality is that this is an attempt by people who want to hold the rest of parliament over a barrel because they're not getting their way on a particular issue," he told ABC radio.
Coalition MPs have been allowed a conscience vote on the private member's bill, which was introduced by independent lower house MP Alex Greenwich in August.
It has caused division within the conservative rump of the Liberals, with Ms Davies previously expressing her willingness to defect to the crossbench.
Opponents of the bill have raised concerns about late-term abortions, gender-based terminations and the way the bill was introduced.
The three MPs in their Monday statement said they had consistently asked the premier to urgently intervene and "restore proper process" by stopping the "fast-tracking" of the bill and establishing a committee into abortion law reform. They said their requests were rejected.
The Reproductive Health Care Reform Bill 2019 previously passed the NSW lower house 59-31. Upper house MPs began debating changes to the bill on Tuesday afternoon.