The blunt language appears in a document published by Scottish Rural Action (SRA). It featured on a side banner on page four of the document.
It was one of a number of banners attributed to participants in a workshop which asked them to imagine what newspaper headlines they might expect to see after Brexit.
Amanda Burgauer, SRA chairwoman, said that the exercise had been used as an “icebreaker” and that several of the participants had used “earthy language” in describing their feelings towards Brexit.
The comments are explained on the following page, saying they had been put forward by those taking part in the workshop event. Ms Burgauer said that she would flag up the “design and layout” issue with the SRA design team.
The Scottish Government has said that although the SRA report was funded through its Brexit Stakeholder Fund, it had no editorial role.
The report will be launched at an SRA event with cabinet secretaries Mike Russell and Richard Lochhead in Elgin on Monday.
Its findings also detailed the potential impact of Brexit on rural Scotland, suggesting that it could lead to “21st century clearances”, with a loss of freedom of movement resulting in significant depopulation.
Further concerns raised in the report, taken from conversations with rural communities, also included the risk of EU funding being lost post-Brexit and potential damage to social cohesion.
Speaking about the report overall, Ms Burgauer said: “This report is about giving voice to a rural point of view that is rooted in Scotland’s people and places, rather than its rural industries.”
She added: “There is widespread anger and frustration across rural Scotland, but that anger isn’t solely about Brexit.
“It was clear from workshop discussions that Brexit is compounding long-standing concerns about rural equity and fragility.
“Brexit was described as the ‘straw that breaks rural Scotland’s back’, with people pointing to structural fragilities across rural communities.
“Participants generally believed that an historic over-reliance on EU funding to ‘prop up’ rural areas makes rural Scotland particularly exposed to future loss of EU support.”
Brexit Secretary Mike Russell said: “The findings in this report are stark. Taking Scotland out of the EU against our will removes us from a market which is eight times bigger than the UK alone.
“Rural communities are deeply worried about the impact of Brexit on their lives. From funding and trade to community life and the workforce, many believe the effects will be nothing short of catastrophic.”
A UK government spokesman said: “Thriving rural areas with strong, sustainable economies and vibrant communities will continue to be a priority for the UK government when we leave the EU.”