Literally the
dogs testicles. In British slang, bollocks, means "testicles", however, when it is applied in this context its usual and derivative meaning is "the best", or "the greatest", or "superb"
interchangeable with the expression "the mutts
nuts"
usually is applied in a similar fashion to: "That jacket is the
dogs bollocks as far as I'm concerned"
or "when are you having the
dogs bollocks lopped off"?
A Television chef might stir the pan, taste the contents, and then look into camera while saying,
"You know, these Korean meatballs REALLY ARE the
dogs bollocks"