Question

On the Spur of the Moment suddenly; acting without thinking about it first; impulsively

Accepted Answer

On the spur of the moment, I rode my bike fifteen miles for a slice of my favorite pecan pie. In the early 1800s, when this idiom was first being used, many people rode horses to get where they were going. Riders often wore short, spiked wheels, called spurs, on the heels of their boots. When they wanted to urge a horse to go faster, they pressed the spurs against its body. If an opportunity is like a spur that gets a person to do something impulsively without waiting, you can easily see how "on the spur of the moment" originated. Now, of course, it relates to any sudden decision to act and has nothing to do with horses.

Idiom	On the Spur of the Moment
Example	On the spur of the moment, I rode my bike fifteen miles for a slice of my favorite pecan pie.
Meaning	suddenly; acting without thinking about it first; impulsively
Origin	In the early 1800s, when this idiom was first being used, many people rode horses to get where they were going. Riders often wore short, spiked wheels, called spurs, on the heels of their boots. When they wanted to urge a horse to go faster, they pressed the spurs against its body. If an opportunity is like a spur that gets a person to do something impulsively without waiting, you can easily see how "on the spur of the moment" originated. Now, of course, it relates to any sudden decision to act and has nothing to do with horses.

Spur Moment Rode Impulsively I Bike Fifteen Miles