It's fairly certain that his victory caused nothing like the shockwaves that have greeted Black's triumph for the Scottish National Party over the Labour Party's highly respected Douglas Alexander.

But following the May 7 General Election in the United Kingdom there's a new order north of the border.

And the woman who has been dubbed "Sweary Mhairi" (pronounced Mary) by some is the embodiment of it.

By unseating the former shadow foreign secretary she brought an end to 70 years of Labour dominance in the seat of Paisley and Renfrewshire South, which forms part of Scotland's former industrial heartland around Glasgow.

It was an amazing climax to a crazy few months for the young woman who has been called everything from an electoral liability and a firebrand to a breath of fresh air.

Less than two years ago the closest she had come to being an opinion former was tweeting her innermost teenage thoughts - often laced with plenty of expletives. All that changed with the Scottish referendum on independence last September.

"Once it came about, we thought this is a real chance to kind of change things," Black said.

Despite defeat in that contest, victory of a much different kind lay ahead.

Born in 1994, three years before Tony Blair swept to power, she grew up during the best and worst of his years in office.

The daughter of retired teacher Alan, 55, who was also her campaign manager, she's a die-hard supporter of the local soccer team Partick Thistle.

She also plays the guitar and piano. Not surprisingly when asked what her favourite song was, she replied with a smile: "Bob Dylan's ."

As a youngster she marched against the Iraq war and for a Scottish parliament, but she only became actively involved during the independence referendum campaign and only joined the SNP after last September's "No" vote. Like a growing number of Scottish people, she felt abandoned by a Labour Party seemingly run by a London Metropolitan elite drawn from the political rather than the working class.

So she made the decision to give up her part-time job in a local chip shop to concentrate on politics and well as her studies.

By taking up the fight against those she saw as out-of-touch and self-serving, this young woman forgot that in doing so she was inviting scrutiny.

Not the first to be embarrassed by something they had said or done on social media, her teenage musings were resurrected in an attempt to rubbish her.

She has had a Twitter account since the age of 14 and a tweet from 2010 reveals what many feel at that age: "Maths is sh*te."

In the run-up to the election she deleted many of her posts, but some were resurrected.

Away from expounding the benefits of her favourite alcopops, teenage angst at times got the best of her. "F**k me I'm angry… bunch a w***k" was among her most vitriolic postings.

And after being caught on camera saying she wanted to "stick the nut on" (headbutt) Labour councillors, she was forced to admit it was not the "wisest phrase", despite insisting it was typical "west of Scotland banter".

But the musings did little to damage to her standings, and a 16,000 majority was a clear vote of confidence in one so young.

"Honestly, when it started, I thought it was highly unlikely, but I thought at least we can put up a good fight and make the SNP a presence in the constituency," she said after the vote was called.

"But as the campaign wore on, that changed. I thought: 'This could happen', because people are really angry and they wanted change."

So was she fazed by it all? "There have been some people going 'Twenty, that's a bit unusual', but once you start talking to them they realise it's more about the quality of your argument and the quality of what you're saying.

"They can see past political spin, aesthetic, ages, gender. I can't help what I am. They see it more as a breath of fresh air."

Social justice is at the heart of her politics, and she believes those who have gone before her at Westminster should be ashamed of the policies it's forced on so many people.

"The way the axe is falling, it's very unequal," she said.

Her first visit to the House of Commons was during a family trip to London. Last Monday she returned, only this time it was now her place of work - along with a historic number of 55 other SNP MPs.

"The thing that's been missing from parliament for years, is that's it's been filled with out-of-touch people who are more concerned about their business interests than the interests of ordinary people," she said.

"I still consider myself an ordinary person, and I'm very in touch with the area that I live in. I think that's an asset of the SNP."