Shrove Tuesday is the Tuesday before Ash Wednesday which is the first day of Lent. It’s a day of penitence, to clean the soul, and a day of celebration as the last chance to feast before Lent begins.
Shrove Tuesday is sometimes called Pancake Day after the fried batter recipe traditionally eaten on this day.
But there’s more to Shrove Tuesday than pigging out on pancakes or taking part in a public pancake race. The pancakes themselves are part of an ancient custom with deeply religious roots.
BBC – Religion & Ethics, which has more.