| Idiom | Meaning | Example | 
| beyond the pale | 
beyond the limit, over the boundary
 | 
His comment went beyond the pale of respect. It was vulgar.
 | 
| biff/biffy | 
washroom, bathroom, the can, the john, the loo
 | 
"Is there a biffy on the bus?" "Yes. There, at the back."
 | 
| Big Apple | 
(See The Big Apple)
 | 
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| big boys | 
powerful men in business, moguls, big shots
 | 
If you want to do business with  the big boys, you need money.
 | 
| big break | 
big chance, a lucky break
 | 
She got her big break when a talent scout heard her sing.
 | 
| big bucks | 
a lot of money, a high price
 | 
You'll pay big bucks to rent an apartment near the university.
 | 
| big cheese | 
the boss, chief cook and bottle washer, head honcho 
 | 
If you've got a complaint, see the big cheese. He's our manager.
 | 
| big deal | 
important event, major happening
 | 
A small fire is a big deal because it can cause a lot of damage.
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| big hairy deal | 
not an important matter, do not make it an issue, big deal
 | 
"The teacher's coming!" "So big hairy deal!"
 | 
| big picture | 
(See the big picture)
 | 
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