From hearing the shout of "pound a bag" in the market to knowing ‘the donut’ is more than just a fried snack, Chesterfield really isn't like anywhere else in the country, or the world.
We previously asked you for your suggestions, and have pulled together the best responses below.
So, according to people who know, you're not really from Chesterfield if you haven't...
1. Walked through or parked at 'The Donut'
Ah the famous Hollywell Cross car park - not that anyone ever calls it that Photo: JPIMedia
2. Eaten (or attempted!) a 'Pisces special' after a night out
What is a Pisces special you may ask? Well it was wonderful concoction of mashed potato and cheese and perfect after a night of drinking. The dish was popular at the Pisces takeaway for three decades and has been commemorated on a t-shirt here: https://dirtystopouts.com/products/pisces-special-unisex-fit-t-shirt-various-colours Photo: Neil Anderson and Carl Flint
3. Fallen on the cobbles (while drunk or otherwise!)
The cobbles around Chesterfield look great but can be hard to navigate at any time of the day Photo: Brian Eyre
4. Done the Brampton Mile
A true Chesterfield resident would know that the Brampton Mile is not a measure of distance and can leave you with a serious hangover. Those with long memories will remember the Terminus pub seen here, which used to be the official starting point for The Mile. Photo: Derbyshire Times