Do you know how to dial a rotary phone, send a fax or rewind a VCR? Because you just might have the skills necessary to confuse a millennial.

Or do you suffer from crippling debt, a flawed education system and bleak job prospects? Because you just might be a millennial confused by how much your elders have "screwed up" society.

A Twitter hashtag created to criticize millennials quickly took on a different tone over the weekend, as young people twisted the topic around to highlight the apparent shortcomings of older generations.

Many people used the hashtag #HowToConfuseAMillennial to point out the unique challenges facing those who grew up in the new millennium. Older generations griped about entitlement and "kids these days" while millennials were pessimistic about the opportunities ahead of them.

College-age millennials embraced the hashtag as a way to fire back at critics among older generations, over topics such as education, economics and racism.

Millennials managed to effectively hijack the hashtag, with the vast majority of tweets in favour of the younger, Internet-savvy generation. One even user mocked the creation of the #HowToConfuseAMillennial hashtag, pointing out that it's largely ineffective to criticize millennials on a platform "controlled" by millennials.

However, there was still a strong undercurrent of grumbling from older generations, who accused young people of being entitled and lazy.

Others took a more tongue-in-cheek approach to the hashtag, by highlighting old technologies that millennials are largely ignorant about.