This is a dialect spelling of "I'd rather." It means, "If I had a choice...." You usually hear this said when someone does not want to do one thing, but would prefer something else. For example, "If I had my druthers, I'd go to a movie instead of to the museum."
It is a corruption of 'I would rather' (have or do something else).As in "If I had my druthers I'd be rich and famous."
druthers
You can use "druthers" in a sentence like this: "If I had my druthers, I would spend the whole day at the beach." It means one's choice or preference.
It means having what you'd prefer-- "Druther" is a slurring of "I'd ruther" (a pronunciation of "rather")," as in "I have to go to school, but I'druther [I would rather] go to a party"
It's not really an idiom. It means "what are you thinking about."
It is not an idiom, it means your nose is itching.
RFP is not an idiom. It's an abbreviation.
"Sieve" is not an idiom. See the related link.
It's not an idiom. It means the tip of your nostril.
idiom means expression like a page in a book
Mothers. Brothers. Druthers.
The idiom "a slap on the wrist" means receiving a mild or lenient punishment for a wrongdoing. It implies that the consequence is not severe or harsh.