What is a hipster? Look at this fucking hipster...

Just to pile in (a day late) to the bespoke curated kebab furore, they claim the name "Fanny's" is an homage to Fanny Craddock:

https://london.eater.com/2018/1/22/16908872/new-restaurant-fannys-wants-to-serve-posh-cool-kebabs-in-stoke-newington

named after Fanny Craddock (“a fun British name with a sense of personality” with “a tongue-in-cheek sense of cheekiness,”

However, I bet at least a fiver it comes from the founders chortling over
"Fanny like a badly packed kebab".