Idioms of big in English

be/get too big for your boots (North American English also be/get too big for your britches)

to be/become too proud of yourself; to behave as if you are more important than you really are

a big cheese

(informal, humorous) an important and powerful person, especially in an organization

big deal!

(informal, ironic) used to say that you are not impressed by something

So he earns more than me. Big deal!

the big enchilada

(North American English, informal, humorous) the most important person or thing

a big fish (in a small pond)

an important person (in a small community)

a big girl’s blouse

(British English, informal) an offensive term for a weak man, who is not brave or confident

(the) big mo

(especially North American English, informal) the ability to keep moving ahead of your competitors, especially in politics

In politics, momentum is known as the big mo.

He's picking up a lot of support and has the big mo.has the big mo

a big noise/shot/name

an important person

the big picture

(informal) the situation as a whole

Right now forget the details and take a look at the big picture.

the big stick

(informal) the use or threat of force or power

The authorities used quiet persuasion instead of the big stick.

the Big Three, Four, etc.

the three, four, etc. most important countries, people, companies, etc.

She works for one of the Big Six.

somebody’s eyes are bigger than their stomach

used to say that somebody has been greedy by taking more food than they can eat

give somebody/get a big hand

to show your approval of somebody by clapping your hands; to be applauded in this way

Ladies and gentlemen, let’s give a big hand to our special guests tonight.

have bigger/other fish to fry

to have more important or more interesting things to do

have a big mouth

in a big/small way

on a large/small scale

The new delivery service has taken off in a big way.

Many people are investing in a small way in the stock market.

He then started spending money in a big way.

make a (big) thing of/about something

(informal) to make something seem more important than it really is

me and my big mouth

(informal) used when you realize that you have said something that you should not have said

the next big thing

(informal) a person or thing that people think will be very popular or successful soon

She has been talked up as the next big thing in British tennis.

Everyone is trying to guess what the next big thing in street fashion is going to be.

no big deal

(informal) used to say that something is not important or not a problem

If I don't win it's no big deal.

too big to fail

so important to the economy of a country that when it finds itself in financial trouble, the government or central bank must act to save it

Shouldering the huge costs of rescuing banks that are too big to fail has been left to taxpayers.