A go-getter is someone who goes above and beyond the Call of Duty. They work more than what is expected of them, and they do more than their share. The image is of someone who is "going" to "get" ahead in his or her career. You'd say this of someone who is working really hard to improve his career.
A "go-getter" is a very positive compliment and means someone who really tries hard to furfill their dreams or performs above and beyond the expected amount. This idiom is also applied to very ambitious people who are referred to as "real go-getters" meaning an ambitious person putting in a lot of hard work.
RFP is not an idiom. It's an abbreviation.
It's not really an idiom. It means "what are you thinking about."
It is not an idiom, it means your nose is itching.
idiom means expression like a page in a book
It's not an idiom. It means the tip of your nostril.
"Sieve" is not an idiom. See the related link.
This is not an idiom. It is a measurement. $100,000 is how you write it in numbers.
Simply its mean a bully.
Tiburon is Shark. But figuratively, a gogetter or unscrupulous person.
The idiom your blood is boiling usually means that you are mad/furious.
Nothing. You have left out part of the idiom. Perhaps you mean "your hands are tied," which means that you have no power to do anything in a given situation.
"Penniless" is not an idiom. It means that you don't have a penny to spend. It's used as an exaggeration to mean that you don't have any money.