The online critic - 'Wayne S' - deemed the establishment "poncey" and "uncomfortable".
His scathing review slammed the owner of the bar for "strutting about in dungarees" and frequently checking his reflection.
Wayne concluded he would "never" drink there again.
But staff at The Old Butcher's in Bedminster, Bristol seemed unfazed by the harsh review.
They were even inspired to introduce a new cocktail called "The Ponce's Dungarees".
Writing on the bar's Facebook page, the management team said: "Thank you to Wayne S for his recent review of our lovely non-bar/restaurant.
"Wayne's inspiring words have won him a place on our menu; congratulations Wayne!
"We are therefore proud to introduce our new cocktail, for a limited time only, 'The Ponce's Dungarees'.
"We hope to see you soon in our grey and drab area of town."
The boozy cocktail is made with white wine, rosé, vodka, Bols Blue liqueur and gomme syrup.
And amused customers say the bar's comical response has made them want to visit even more.
Amy Ruth wrote: "Best thing I've read all day! Definitely gonna pop in one day with my dungarees in solidarity, and get me a poncy cocktail."
And Lindsay Wilkinson added: "Great advertising. Makes me want to visit now just to check."
Read Wayne's full review of The Old Butcher's - which was opened in April - below:
"Heard about this new place and thought I'd pop in for a drink to check it out.
"So, its an old butchers shop and it feels like it still is, bright white tiled walls, the furniture was uncomfortable.
"Wasn't sure if it was supposed to be a bar or restaurant, to be honest it felt like neither, poncey 2/3 of a pint glasses of for beer, whats wrong with pints ffs??
"The owner struts about in dungarees, and if he has the chance to check his reflection he damn well makes sure he does.
"Would I eat there? Never, only has crab on the menu anyway!? Would I drink there again? Never.
"Would I recommend it? Only to those who want to be soooo hip (like the owner thinks he is) that they want to watch the traffic go by in this rather grey and drab area of town."