Lose one’s shirt means to lose money in an investment

Jason lost his shirt after the company he invested in went bankrupt.

Back to the drawing board means to have to start something for the beginning because of failure of success from previous attempts

The young inventor had to go back to the drawing board after his latest invention didn’t work as expected.

Jump the gun means to start a run (or other sporting event) before the starting signal OR to react to quickly to a situation without having all the necessary facts or information.

After his third instance of jumping the gun the runner was disqualified from the race.

The police jumped the gun when they arrested the man fro the crime; they later found out that he had a solid alibi.

Stick out one’s neck means to take a risk.

The unarmed policeman stuck out his neck when he apprehended the violent criminal.

Bend over backwards mean to try hard to please someone else.

I always bend over backward trying to please my mother-in law.

Pushing up roses means to be dead.

When asked how his father was he responded “He’s pushing up roses”.

Blow off steam means to release built up energy or emotions by doing or saying something.

Martha ignored her husband’s rant about the airlines policy on refunds because she knew he was just blowing off steam.

Go bananas means to act insanely or crazily

Hector went bananas after he heard about the death of his father.