Horsepower (hp) is unit of measurement of power, the rate at which work is done. The most common conversion factor, especially for electrical power, is 1 hp = 746 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses.
Also, when you “keep your fingers crossed,” you are wishing for good luck. If you hide your hand out of sight, down by your leg or behind your back, though, it means you are telling a deliberate lie. By crossing your fingers in this way, you are hoping somehow to be excused or to escape punishment for lying.