Dog’s Bollocks
British SlangDefinition
Coarse British slang meaning something exceptionally good or impressive; the very best.
Examples
"That new bakery’s sourdough is the dog’s bollocks—crispy crust and airy crumb."
"Your code refactor is the dog’s bollocks; everything runs twice as fast now."
"The cinematography in that film was the dog’s bollocks, absolutely breathtaking."