Idioms

To eat humble pie - to admit your error and apologize

A wet blanket - one who spoils the fun

Crocodile tears - insincere tears

To throw down the gauntlet - to challenge someone

To rule the roast - to be in charge

I'm from Missouri - one who is not easily convinced

Red-letter day - day of happiness, time for rejoicing

Thumbs-down - signal of rejection

A bitter pill to swallow - a humiliating defeat

Sour grapes - to disparage something that you cannot have

To have cold feet - to hesitate because of fear or uncertainty

To pay the piper - to bear the consequences

The lion's share - the major portion

To take the bull by the horns - to face the problem directly

To bury the hatchet - to make peace

To make bricks without straw - to attempt to do something without having the necessary materials

To have the upper hand - to gain control

A chip off the old block - a son who is like his father

Burn the midnight oil - study or work late into the night

Once in a blue moon - on a very rare occasion

A feather on one's cup - something to be proud of

Cold shoulder - disregard or ignore

To hit the nail on the head - to state or guess something correctly

To leave no stone unturned - to try one's best,  to make every effort

To tighten one's belt - to get set for bad times or poverty

Through thick and thin - in spite of all sorts of difficulties

To twist around one's finger - to control completely

A house divided against itself cannot stand - things will not work out without unity

Empty vessels make the most noise - foolish or unwise people are the most talkative and make most fuss

To open a can of worms - to create  whole new set of problems