They like to throw the bull around at the bar.

She decided to throw a wrench in the works and quit her job.

He decided to throw a spanner into the works and change the entire project plan.

He decided to throw in his hand and give up on his dream of becoming a professional musician.

He is throwing gasoline on the fire.

He is throwing gas on the fire.

He decided to throw a wrench in the gears and disrupt the entire project.

He is throwing a wrench in the gears of our project.

He is throwing a spanner in the works.

He is throwing a wrench in the works by constantly changing the project requirements.