“Iron out”

“Go belly up”

To fail completely, especially a business.

“Hard to swallow”

Difficult to accept or believe.

“Come out on top”

To win or succeed after difficulty.

“Heavy going”

Difficult to do, read, or understand.

“Green with envy”

Very jealous.

“Day in, day out”

Every day, repeatedly.

“Carve out a niche”

To create a specific position in a market or field.

“Go pear-shaped”

To go wrong or fail.