Short for Dance Dance Revolution,a highly popular game in Japan,China,etc...Game based on feet mouvements,the more accurate you are,the more points you get,very upbeat music,addictive game.One usually stops at the arcades to play this game at the movies
Nana: Hey,we still have time before the movie starts,what do you want to do?
Yaya: Let's DDR!!
Nana: Good idea!