Someone who does everything for you, no matter when you ask, is at your beck and call.
Someone with bedroom eyes has a sexy look in their eyes.
If someone is very excited about something, they have a bee in their bonnet.
If something is the bee's knees, it's outstanding or the best in its class.
If you make a beeline for a place, you head there directly.
Someone who says they've been around the block a few times is indicating that they have life experience relating to the topic at hand. It is not necessary to discuss the introductory aspects of the topic or give beginner level advice.
(UK) If someone has been in the wars, they have been hurt or look as if they have been in a struggle.
People say this when they have already experienced what is being discussed.
(UK) People say that life is not all beer and skittles, meaning that it is not about self-indulgence and pleasure.
If people make an agreement or contract and then the situation changes very quickly, it changes before the ink is dry.
The term Jack Robinson represents 'a short amount of time'. When you do something before you can say Jack Robinson, you do it very quickly.
In philosophy "to beg the question" is to assume something to be true that has not yet been proved. I have seen the idiom also to mean that a question is crying out to be asked.
This idiom means that people who are in great need must accept any help that is offered, even if it is not a complete solution to their problems.
When someone is behind bars, they are in prison.
If something happens away from the public eye, it happens behind closed doors.
If you do something behind someone's back, you do it without telling them.
A difficult position from which it is unlikely one can escape.
Someone that is behind the times is old-fashioned and has ideas that are regarded as out-dated.
A belief in the hereafter is a belief in the afterlife, or life after death. It is, therefore, associated with religions and the soul's journey to heaven or to hell, whichever way being just deserts for the person based on how they led their life.
To bell the cat is to perform a difficult or impossible task.
Bells and whistles are attractive features that things like computer programs have, though often a bit unnecessary.
(USA) To be somewhere with bells on means to arrive there happy and delighted to attend.
If things go belly up, they go badly wrong.
If something isn't up to standard, or someone isn't feeling or doing very well, they are below par.
If someone says something that is cruel or unfair, it is below the belt, like the illegal punches in boxing.
(UK) Someone who wears belt and braces is very cautious and takes no risks.
(USA) Someone who wears belt and suspenders is very cautious and takes no risks.
If someone bends over backwards, they do everything they can to help someone.
To bend someone's ear is to talk to someone about something for a long-enough period that it becomes tiresome for the listener.
The Benjamin of the family is the youngest child.
(UK) A person who is as bent as a nine bob note is dishonest. The reference comes from pre-decimalisation in UK (1971), when a ten shilling (bob) note was valid currency but no such note as nine shillings existed.
If something is beside the point, it's not relevant to the matter being discussed or considered.
If people are beside themselves, they are very worried or emotional about something.
If you are beside yourself, you are extremely angry.
The best that could be obtained from a list of options that were not exactly what was required.
If you have the best of both worlds, you benefit from different things that do not normally go together.
If something is the best thing since sliced bread, it is excellent. ('The greatest thing since sliced bread' is also used.)
(USA) If you can bet your bottom dollar on something, you can be absolutely sure about it.
Your better half is your husband or wife.
This idiom suggests that doing something late is better than not doing it at all.
This idiom is used to recommend being cautious rather than taking a risk.
If something is better than a kick in the teeth, it isn't very good, but it is better than nothing.
If something is better than a stick in the eye, it isn't very good, but it is better than nothing.
This is the shortened form of the full idiom, 'better the devil you know than the devil you don't', and means that it is often better to deal with someone or something you are familiar with and know, even if they are not ideal, than take a risk with an unknown person or thing.
If you are caught between a rock and a hard place, you are in a position where you have to choose between unpleasant alternatives, and your choice might cause you problems; you will not be able to satisfy everyone.
If you are caught between the devil and the deep blue sea, you are in a dilemma; a difficult choice.
This idiom is used when telling someone something that you want them to keep secret.
If something's beyond a shadow of a doubt, then absolutely no doubts remain about it.
If people behave in such a way that you find it almost impossible to accept that they actually did it, then you can say that their behaviour was beyond belief.
If something's beyond your ken, it is beyond your understanding.
(AU) An Australian idiom idicating that even if you go as far as you can, the black stump is still a little further.
If something's beyond the pale, it is too extreme to be acceptable morally or socially.
(USA) The Big Apple is New York.
If someone is making big bucks, they are making a lot of money.
The big cheese is the boss.
(USA) The Big Easy is New Orleans, Louisiana
An important person in a company or an organisation is a big fish.
A big fish in a small pond is an important person in a small place or organisation.
A person who is very weak or fussy is a big girl's blouse.
A big hitter is someone who commands a lot of respect and is very important in their field.
If someone has a big nose, it means they are excessively interested in everyone else's business.
The big picture of something is the overall perspective or objective, not the fine detail.