From horse racing, where they judge the winner of the race by which horse's nose crosses the line first.
It is not an idiom, it means your nose is itching.
An idiom is a phrase that makes no sense unless you know the definition. Can a nose actually run somewhere? No, so this is an idiom.
A British police euphemism meaning to keep out of trouble, commit no crimes
This idiom comes from horse racing. You'd bet on whichever horse's nose would come in first. If you make a good guess, you're "on the nose."
In a horse race when the horses are neck in neck, the horse who won just won by putting his/her nose up just a little bit farther than the other. 'Win by a nose' means that the win was a very close one.It comes from horseracing, and it just means "by a little bit" ... more than "by a hair," but less than "by a mile."
say no to it
To poke your nose into is to insert yourself into someone else's business.
Nothing. The correct idiom is "ace in the hole," which literally means that you have an ace card (the highest value in the deck) hidden away somewhere so you can win the card game. It's come to mean any situation where you have a hidden advantage or something you can "pull out" to win the situation.
It's not an idiom, it's a description. It's when you bleed from your nose.
The most common phrase is "nose to the grindstone," as in "He really has his nose to the grindstone this week."
Yes, "nose to the grindstone" is an idiom that means to work hard and diligently. It refers to the act of focusing and committing oneself fully to a task or project.
The idiom for paying far more for an article than it is really worth is "to pay through the nose."