| Idiom | Meaning | Example |
| bat five hundred |
hit half the times at bat, win half the competitions
|
If you solve five problems out of ten, you're batting five hundred.
|
| bat her eyes |
blink the eyes, blink in a sexy way
|
Verna just stood there batting her eyes, trying to look sexy.
|
| bated breath |
(See with bated breath)
|
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| battleaxe |
cranky woman, a bitch [B]
|
Marlene - that old battleaxe - is spreading lies about me.
|
| batty |
(See drive me batty)
|
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| bawl me out |
tell me I have been bad, scold me
|
If I fail math, Dad will bawl me out. He'll give me a lecture.
|
| be-all, end-all |
trying to be too great, world beater
|
The new manager thinks he's the greatest - the be-all, end-all.
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| be my guest |
have this chair, have that drink, help yourself
|
Be my guest. Sit here. I can find another chair.
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| be my undoing |
be the cause of my failure; my Achilles heel
|
Credit cards may be my undoing. My VISA balance is over $5000!
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| be off |
leave, go, off with you
|
Be off, my dear, or you'll be late for work.
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