safety in numbers: it’s easier to stay safe when in a large group.

Small fish like to swim together because they find there is safety in numbers.

fish

(the) salt of the earth: good people

The people who live next door to us are the salt of the earth.

couple older

saved by the bell: the intervention of time or a machine so that a person doesn’t need to complete some type of responsibility.

Just as the teacher was about to call on Allen to answer a question in class, he was saved by the bell.

saved by the bell

save your breath: don’t spend any time trying to persuade another person to do something.

You might as well save your breath when telling a cat "no." Cats don’t really listen to people.

cat
scratch my back and I’ll scratch yours:

see eye to eye: to agree; to have the same ideas.

They’re unable to see eye to eye on a lot of things, which is why they might break up.

couple having a fight

seen one, seen them all: something is not interesting to a person who has already seen that thing.

A: Do you want to take a look at some cows?

B: Nah. Seen one, seen ’em all.

dairy cow

see someone off: to bring someone to a place and say goodbye.

Bill saw his wife off at the airport this morning. She’s traveling to Portland for a meeting.

airport

see through someone: to know exactly what a person is thinking or trying to do.

Theodore doesn’t think anyone knows what he’s planning; however, everyone can see right through him.

invisible

sell one’s soul to the devil: to do something evil in order to receive a reward.

There are many people who would sell their soul to the devil in order to be rich and famous.

the devil

separate the men from the boys: a situation shows who is a strong man and who isn’t.

The actions that take place during a battle separate the men from the boys.

war

separate the wheat from the chaff: to sort what is useful and good from what isn’t; to separate what’s useful from what’s useless.

As someone who has been in the same business for the last 20 years, he’s very capable of separating the wheat from the chaff when interpreting a chart.

business man

set one’s heart on (something): to want to do something or receive something; to have a desire.

Tim set his heart on going to the track this weekend to race go-karts.

racing

set one’s mind at rest: to relax in the midst of some problem or challenge.

You can set your mind at rest if you prepare for class by doing all of your homework and listening to your teacher.

mind at rest
set the record straight:
shape up:
share and share alike:
(the) shoe is on the other foot: to be someone else’s position, usually a bad situation.
shoe
shoot one’s mouth off:

shoot the breeze: to sit around and talk with friends.

In the afternoons, they sit in the park and shoot the breeze.

men talking
(the) short end of the stick:
(a) shot in the dark:
gun

(the) show must go on: it’s necessary for someone to perform despite any personal problems or obstacles.

Rachel’s throat hurts and she has a headache, but the show must go on.

woman singer

show someone a good time: to take someone out somewhere; to bring a friend to different places for fun and entertainment.

He showed his friend, Gretchen, a good time when she came to visit him in Minneapolis. They went skating and they went to a few nightclubs.

couple trying on skates

show someone the door: to tell someone to leave; to make someone leave because of bad behavior or some other reason.

Matt tried to come to work wearing some crappy old clothes, but when his boss saw what he was wearing, he showed him the door.

man
sick and tired:
sick to one’s stomach:
(a) sight for sore eyes:
signed, sealed, and delivered: something is finished, usually an agreement. men shaking hands
sign on the dotted line:
silence is golden: it’s good to be quiet sometimes
sink one’s teeth into something:
hamburger
sit back and relax: sit back and relax
(the) skin of one’s teeth: very close
(the) sky’s the limiit:

sleep on it: make a decision the next day after a good night’s sleep.

He’s not sure what to do about the sale of his company. He’ll need to sleep on it and make a decision tomorrow.

businessman
(a) slip of the lip:
slip through one’s fingers:
(a) smoking gun:
(a) snowball’s chance in hell:
snowball
soaked to the bone: man who is wet
somebody up there likes me:
something tells me:
somewhere along the line: oil rig
spare the rod and spoil the child:
speak of the devil:
speak one’s mind: people talking in a car
speak one’s language:
spill the beans:
beans
spitting distance:
spread oneself too thin:

(the) squeaky wheel gets the grease: the person who complains loudly will get the most attention.

wheel axle

stand on one’s own two feet: to support oneself; to take care of your needs.

Now that he has a good job and a good salary, he’s able to stand on his own two feet. He doesn’t need financial help from his parents any more.

man standing
status quo: the way things are; the current situation
steal the show:
(a) step in the right direction:
(the) story of my life: the way things usually happen to me, usually used for something bad.
book
(the) straw that broke the camel’s back:
camel
stubborn as a mule:
donkey
swallow one’s pride:
swear on a stack of Bibles: