The quote is common in day-to-day slang. Most people will remember the 1993 comedy film starring Bill Murray as the main association with the phrase "It's Groundhog Day", but the meaning goes beyond the 31-year-old classic. So, what does it actually mean? "Groundhog Day" refers to an American tradition observed on February 2nd. According to folklore, if a groundhog emerges from its burrow on this day and sees its shadow due to clear weather, it...