Where there is a hashtag you can bet your life there's a company trying to cash in on it with there own 'quirky' take.
Sometimes it's not even a company but someone you just hope would know better - like your own government.
This was the Department for Work and Pensions' attempt to join the #BackToTheFuture trend on Wednesday...
‘Pensions? Where we’re going we don’t need pensions…’ #DontIgnoreIt #BackToTheFuture https://t.co/fWkyXT9qBY pic.twitter.com/G1Pjx7P2oO
— DWP Press Office (@dwppressoffice) October 21, 2015
Oh dear. First of all that is not Marty McFly or Doc Brown.
@dwppressoffice what the hell is that?!
— Retro Kidneys (@RetroKidneys) October 21, 2015
The Guardian's Alex Hern had a pretty solid point.
.@dwppressoffice pretty sure if you have a time machine you actually can do without a pension, that’s basically the point of biff’s story
— Pumpkin Spiced Hern (@alexhern) October 21, 2015
But a lot of people chipped in with some helpful advice.
.@dwppressoffice pic.twitter.com/p4frXS411r
— Andy Parmo (@andyparmo) October 21, 2015
@dwppressoffice delete your account
— The Guyliner (@theguyliner) October 21, 2015
Or the odd film reference.
‘Social media training? Where we're going we won't need social media training...’ @dwppressoffice pic.twitter.com/MSBP0QH8Jj
— Left Ghostside (@leftoutside) October 21, 2015
Other's weren't quite so succinct.
@dwppressoffice @ucrazyutaraptor what a fucking shambles
— Jim (@letshugbro) October 21, 2015
@dwppressoffice Considering your record with cuts, that might not be the best quote paraphrase to publicise
— Kit James (@KingdomOfTheEgo) October 21, 2015
@dwppressoffice ironic because IDS will take UK back to 1980s
— Ryan Lanham (@RyanMarkLanham) October 21, 2015
The DWP weren't alone - Visit Parliament tried to get in the act too.
Will Marty and Doc visit @UKParliament today to explore 1,000 years of history? #BTTF2015 https://t.co/VCazg61yXu pic.twitter.com/CJlbl92l6l
— Visit Parliament (@visitparliament) October 21, 2015
.... which also failed.
@visitparliament @UKParliament @UKHouseofLords @HouseofCommons @UKParlArchives I hope so, they can warn us about the Tories
— David Preston (@Crazy_DavidP) October 21, 2015
But the UK wasn't alone, a similar attempt by the Russian Embassy similarly backfired.
Today being #BackToTheFuture day,we'd like to ask-do you think the world has become a safer place since 1985or 1955? pic.twitter.com/hdHaDBFHmj
— Russian Embassy, UK (@RussianEmbassy) October 21, 2015
@RussianEmbassy Not with Russia shooting down passenger planes.
— Sarah Hurst (@XSovietNews) October 21, 2015
@RussianEmbassy Not for gay people in Russia
— Alice Burton (@Alinguo) October 21, 2015
@RussianEmbassy Not while both russia the us & uk arm anyone & everyone.
— Bob & Flo (@wickwar) October 21, 2015
Here are seven reasons why our future is better than Back To The Future: