Mutt's nuts British noun slang
The best or the most excellent
Tweed is the mutt's nuts for making men's suits.
This soap is the mutt's nuts that I've ever used.
It is said our fitness center is the mutt's nuts in our city.
A product's feature that likely to make people want to buy it.
If you say that you carry all before you, you mean that you successfully defeat all of your opponents in a battle or a competition.
The best person or the best thing of a group in which none is good.
To destroy one's plans or ideas, often by doing something better than them
This is anotther version of 'the dog's bollocks,' and it first appeared in the United Kingdom in the 1990s. It's a wonderful variation since it has two advantages over the original form of the rhyme and the fact that nuts is slang for bollocks and also implies crazy and crap.
Used to allude that the last force, problem or burden which is seemingly minor and small causes a person, system or organisation to collapse or fail
Her husband's violent act last night was the straw that broke the donkey's back and she left him