Achilles heel
A person's soft spot
Face the music
to accept the negative consequences of something you have done wrong
Kick the bucket
to die
Paint the town red
you go out for a night with lots of fun and drinking
(be) Under the weather
you are feeling a bit ill, sad or lack energy
Bad apple
a person who is bad and makes other people feel/act bad
Get something off your chest
confess something that has been troubling you
(the) Last straw
final problem that makes someone lose their temper OR the problem that finally brought about the collapse of something
Quiet as a mouse
person makes absolutely no noise
a Vicious circle
a sequence of events that make each other worse
Calm before the storm
a relaxed, quiet time before period of violent activity or argument
Happy-go-lucky
you don't worry or plan and accept things as they happen
Make a killing
you do something that makes you a lot of money
(go from) Rags to riches
start life very poor and become very rich
Water under the bridge
if something belongs to the past and isn't important or troubling any more
Daylight robbery
if you are overcharged for a product/service
Icing on the cake
refer to something good that happens on the top of an already good thing-situation
(be) Neck and neck
if 2 competitors are neck to neck they are very close and neither is clearly winning
Scraping the barrel
when you are reduced to using things/people of the poorest quality because there is nothing else available
X-rated
if something is X-rated it isn't suitable for children
(have) Egg on your face
you are made to look foolish/embarrassed
Joined at the hip
people that are very closely connected and think the same way
(be) On a roll
you are moving from success to success
Take a leaf out of someone's book
you copy something they do because it will help you
You scratch my back, I'll scratch yours
if you do something for me I'll return the favor