Irish Foreign Minister Simon Coveney | Virginia Mayo/EPA Ireland’s Coveney: Brexit deal cannot be unpicked Brexiteers use ‘simplistic’ language that does not reflect reality, says the Irish foreign affairs minister.

The Brexit divorce treaty cannot now be renegotiated, said Irish Foreign Minister Simon Coveney Wednesday, as he criticised U.K. Brexiteers for using "simplistic" and "macho" language to push for changes to the deal.

Theresa May presented the 585-page Withdrawal Agreement to her Cabinet last week triggering a slew of government resignations. But talks have continued on political declaration document that sets the framework for negotiations on the U.K.'s future relationship with the bloc.

On the legally-binding withdrawal text though, there is no further room for manoeuver said Coveney. “The withdrawal treaty text is agreed, it’s closed,” he told Euronews, “The British government signed off on it.”

“If you re-open [the Withdrawal Agreement] for one issue, well then there is an avalanche of other asks, I am sure, that different countries will have,” he said.

U.K. Prime Minister Theresa May is battling to sell the deal at home to skeptical MPs and although an immediate threat to her leadership appears to abated, that could be revived if parliament rejects the deal next month.

Asked what he thought of those calling for a challenge to May's leadership, Coveney said that hardline Brexiteers “simplify Brexit almost into a totally unreal series of choices where Britain can have it every which way and where the EU will just have to suck it up.”

“That kind of simplistic — in some cases macho — language doesn’t reflect reality of the complexity of what’s happening here,” he added.

Coveney also said that it is not in the interest of the U.K. to crash out of the bloc without a deal. “Britain and the EU … have been putting hundreds of different mechanism and agreements in place that cannot just be pulled apart overnight.”