"Pedal to the metal" is an idiom that means to give something or someone your full effort or attention, to work as hard as possible, or to go all out.

The idiom "tie the knot" is used to describe the act of getting married or entering into a committed relationship. It can also refer to the act of completing a task or achieving a goal.

The idiom "in tandem" refers to two or more people working together as a team, often with equal responsibilities and roles. This can be used to describe a group of friends, co-workers, or even strangers who are united by a common goal.

A bird in the hand is better than two in the bush, meaning it's safer and more reliable to have something tangible or certain rather than taking risks for a potential reward that may not materialize. This idiom emphasizes caution and practicality over potential gains.

The idiom "rain or shine" is used to describe a situation or activity that will happen regardless of the weather conditions. It means that something will take place even if it rains, snow, sleets, hails, or shines.