Loki Day

Loki Day is a holiday mentioned and practiced in the Dragons: Race to the Edge, Season 2 episode, "Shock and Awe".

History
Both Ruffnut and Tuffnut are worshippers of the Norse God Loki. He has a day set aside in honor of him, simply called "Loki Day". In "Shock and Awe", the Twins celebrate this holiday throughout the episode.

Practices
Based on the Twins' actions in "Shock and Awe", Loki Day is celebrated simply by playing mischievous pranks on others. There does not appear to be any specific limit or level to reach in the number or type of pranking.