Each Monday morning during winter, with the weekend's AFL games played and won, thousands of football fans await Titus O'Reily's weekly Knee Jerk Reaction blog post.

The satirical blogger, who is followed on social media by tens of thousands of people, wraps the weekend's games each Monday with an article promising "idiotic hysteria".

"Footy is a passion, not some cold-hearted, spreadsheet-dominated rational exercise," O'Reily begins each post.

He then dissects the round, game-by-game, with a dry wit and sharp turn of phrase which has won him thousands of followers.

O'Reily said his popularity was more by accident than by design, having never sought to make writing anything more than a hobby since he started three years ago with a "really boring" blog post.

"No-one read it, not even my parents read it," he told 774 ABC Melbourne's Francis Leach.

But soon after, he published a blog post titled "The constant fear of raising a Carlton supporter", about how to indoctrinate your children into your football club.

"That did well, so I just started writing satirical ones and making jokes, and it started to grow," he said.

The weekly wrap is just part of his output and O'Reily's blog also features satirical articles with titles such as "Celebrate 'Tell It Like Kyrgios Day' at work".

He now writes a weekly preview of each round for the Herald Sun newspaper.

Perhaps his most popular writing is his prolific and hilarious Twitter stream, which has more than 30,000 followers.

He started gaining a following on the platform while venting his frustrations as "a long-suffering Melbourne supporter".

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"When I started to get people following me on Twitter was when I used to just rant during Melbourne games," he said.

"The more miserable I am, the more people tend to engage with me."

He said he never pre-writes his tweets, preferring to make his jokes in the moment.

"Some I think 'that's not that funny' and it'll go really well, and others I think 'you're a genius'... and no-one will be interested," he said.

Old media turns to 'proven commodity'

Now with his weekly column for the Murdoch press, O'Reily has taken a step from the new media to the old, but said he never tried to make a career of his writing.

He said as his hobby gained a following, mainstream media began to contact him with offers of work.

"That's the way they now find people, I guess; they look at it and go 'here is a proven commodity we can buy off-the-shelf'," he said.

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O'Reily attributed some of his success to being a footy fan rather than an AFL insider or journalist.

"I'm not trying to be friends with people or build long-term relationships to break stories, so I can say whatever I want," he said.

"I think people like it because I'm saying what people say in pubs."

His newfound writing career has coincided with the Essendon doping saga, which he said had been "ripe" for material.

As his profile has risen, footballers, commentators and "most of the club presidents" have sent him private messages suggesting an idea for a gag.

"They can't do them, so they say 'what about this for a joke'," he said, adding that most of the suggestions are "terrible".

When the final siren of the AFL season sounds, O'Reily's focus will turn to cricket, however he said he is happy to write about any sport.

"Anything to keep me away from reality," he said.

There may still be plenty to keep O'Reily miserable if the Australian cricket team's recent Ashes performance is anything to go by.

"That was a debacle. You could have taken 11 random Australians off the street [to play] and you would have got a similar performance," he said.