guru dakshina- tradition of repaying one 's teacher or guru after a period of study or the completion of formal education haejangguk- thick , spicy , and very hearty soup made from ox ( beef ) bone broth with soybean paste hallyu-the korean wave , refers to the significant increase in the popularity of south korean entertainment and culture starting in the 1990s , in asia , and more recently in other parts of the world ilaneer- tender coconut water iljae sidae- period of japanese rule over korea janeu- holy thread that is worn by the hindu brahmins of india jegichagi- korean traditional game it requires the use of people 's foot and jegi , which looks like a badminton shuttlecock , made of paper , or cloth .