| A | B |
| back off | stop pushing too much work on people |
| give the shirt off your back | be very generous |
| take a backseat to | Let someone else get all the praise |
| back to the drawing board | redo, or redesign something |
| straw that broke the camel's back | the final thing that makes your upset enough with someone to take some action |
| beat his brains out | worked hard |
| beat you to the draw | did something first |
| beat a fast retreat | get away quickly |
| beat it | go away |
| my heart skips a beat | very excited |
| blow hot and cold | always change your mind |
| blow your lines | forget what you were supposed to say |
| blow your own horn | tell people your good points |
| blow up | tell because you are furious |
| blow the whistle on her | tell people what happening |
| break ground | start digging |
| break in | teach a new person how to do something |
| break the ice | stop the silence |
| break off | stop |
| break a record | do what no one has ever done before |
| bring down the house | is the favorite |
| bring home the bacon | work and bring home money |
| bring up the rear | be last in line |
| bring up | rasie children |
| bring about | cause to happen |
| burn your bridges behind you | be unable to go back |
| money burns a hole in your pocket | not able to save |
| burn the midnight oil | work lat at night |
| burn to a crisp | get a very bad sunburn |
| keep the home fires burning | keep everything running the wya it always does |
| crack a book | read |
| crack a joke | tell something funny |
| crack a smile | smile |
| crack the whip | make people work hard |
| crack up | laugh very hard |
| come to blows | fight |
| come to pass | happen |
| come to light | become known |
| come in handy | be useful |
| come down hard on | be strict |
| call on the carpet | scold or punish |
| call it a day | stop |
| call the shots | make decisons |
| call to order | start a meeting |
| call off | cancel |
| big chesse | a leader |
| big frog in a small pond | an important person in a small group |
| what's the big idea? | what is the reason |
| talk big | brag |
| big deal! | something that is not terrific |