It's "Sharp as a tack." And it means that the person is of high intelligence.
Example :
Person : "My son got a perfect score on his history test!"
Person2 : "Yeah, that boy is sharp as a tack."
it come from the sharpest tack of the world
"Sharp" is a slang term for intelligent or capable. It means the most capable or smartest in the group.
The idiom "eagle eye" refers to having an acute eyesight, or an intently watchful eye. It refers to the sharp eyesight of an eagle, which are known for seeing fish from hundreds of feet up.
It is not an idiom, it means your nose is itching.
idiom means expression like a page in a book
it come from the sharpest tack of the world
Someone who is quick to come back with a witty, smart, or brilliant answer.
It means really intelligent. A razor is very sharp, so a razor-sharp wit would be a sharp wit, or a smart brain.You can also see this used to refer to someone who is sarcastic, with the meaning "sharp" referring to "cutting" as in slightly mean.
Someone is complimenting your intelligence.
"Sharp" is a slang term for intelligent or capable. It means the most capable or smartest in the group.
Sick Em!
The idiom "eagle eye" refers to having an acute eyesight, or an intently watchful eye. It refers to the sharp eyesight of an eagle, which are known for seeing fish from hundreds of feet up.
This isn't an idiom. It means exactly what it says. If you look up words that you don't understand, you'd see that "storm" means to attack violently. If someone stormed the walls, they attacked the walls. Sometimes people do use this term as a metaphor to mean attack figuratively instead of literally.
It's not really an idiom. It means "what are you thinking about."
RFP is not an idiom. It's an abbreviation.
It is not an idiom, it means your nose is itching.
With its sharp teeth. .. . .. .