Time idioms
Against the clock
Working with limited time remaining
all ears
fully listening
Bad egg
a person who is often in trouble
Dog days
Very hot days
Beet red
dark red (usually to describe face)
Around the clock
Continuously, 24 hours a day
cold feet
nervous just before a big event
Carrot top
person with red or orange hair
In the dog house
in trouble with another person
Black and white
straight forward, very clear
At the eleventh hour
At the last possible moment
cry your heart out
Cry very hard
cream of the crop
The best
until the cows come home
For a very long time
catch red handed
catch someone in the act of doing something wrong or illegal
Beat the clock
Finish something before a deadline
head over heels
Deeply in love
Full of beans
have a lot of (silly) energy
take the bull by the horns
face a challenge or danger boldly
the green light
Permission
Call it a day
Stop working for the day
pull one's leg
joke or tease someone
Hot potato
a controversial or difficult subject
Kill two birds with one stone
To solve two problems at once.
green with envy
Very jealous