dog's ballocks
Ⅰ
noun in typography, a colon dash (:-) UK, 1961
Ⅱ ⇨ dog's bollocks; dog's ballocks; the bollocks
noun anything considered to be the finest, the most excellent, the best. Derived from the phrase 'It sticks out like a dog's ballocks' said of something that the speaker considers obvious, hence the sense of 'someone or something that sticks out from the rest'. Often abbreviated in speech to 'the dog's' UK, 1989