Expressions used in Everyday Spoken English in Social and Professional contexts
Bulls are dangerous animals, so no one in their right mind would grab one by its horns! When you use this expression, you are declaring that the task ahead is difficult and you are determined to see it through. People sometimes use this when they have been procrastinating (avoiding a task) and they have chosen to motivate themselves. Although this is used in social situations, you are more likely to hear it in professional contexts.