In folklore, Krampus is a horned figure described as “half-Goat, half-Demon”, who, during the Christmas season, punishes children who have misbehaved, in contrast with Saint Nicholas, who rewards the well-behaved with gifts.
As Satan is to God, Krampus is to Saint Nicholas.
Actually, Krampus is one of the companions of Saint Nicholas in several countries including Austria, Bavaria, Croatia, Czech Republic, Hungary, Slovenia, South Tyrol and parts of Northern Italy.
Originating in Germanic folklore as early as the 1600s.
While St. Nicholas rewards the good children with gifts and sweets, Krampus dispenses punishment to the wicked children who have strayed from the path of good.
It is said he takes care of St. Nick’s “naughty list.” Why, the mere sight of Krampus alone is enough to turn any wrong-doer toward more peaceful pursuits.
In traditional parades and in such events as the Krampuslauf (English: Krampus run), young men dressed as Krampus participate; such events occur annually in most Alpine towns. Krampus is featured on holiday greeting cards called Krampuskarten.
Vid Source: Is this Paranormal?