The Commons leader today criticised Nicola Sturgeon's party and claimed they were still upset about the 2014 result.
His comments came after the SNP MP Tommy Sheppard warned that pressure for Scottish independence is mounting with another opinion poll showing support for independence.
The Edinburgh East MP said: “In the week when the 19th Scottish opinion poll reports majority support for independence, I ask again for a debate on this Parliament’s response.
“Yesterday, George Osborne, a man whose interventions single-handedly boosted Yes support in the last referendum, demanded that the Government ignore democratic decisions.
“He seems to believe that, as this union can’t be maintained by consent, it must be maintained by coercion.
“If this is becoming the Government’s view, surely this Parliament should discuss it?”
The senior Tory dismissed his claims, and accused him of “moaning”.
He said: “All, ultimately, (Mr Sheppard) wants to do every week is moan about the devolution settlement.
“The referendum was won by the unionists in 2014, it was accepted that it would be for a generation – a generation is not a mere six-and-a-half years.
“The Scottish people made their choice and he is still grumpy that they didn’t make the choice that he wanted.
“This Parliament respects the free choice that the Scottish people made more than he does.”
Mr Rees-Mogg added that the SNP “is in such an awful muddle with its rows and disagreements, with Mr Salmond and Ms Sturgeon getting together like cats in a sack”.
He continued: “It is a most disagreeable spectacle and that is why the union is something that we should all support and not leave it to the dangerous activities of the SNP.”
It came during a Commons session that also saw Mr Rees-Mogg thank the "woke brigade" for reminding Britons of the country's "great heroes".
He added: “Lots of statues that people used to walk past and not really notice, they suddenly think: ‘Gosh, that’s Gordon of Khartoum, he’s an interesting figure, I want to know more about him and what he did to put down the slave trade in the Sudan’.
“I think this has helped remind people of our history and that it’s a history we can be enormously proud of.”