Heard from a Korean Urban action variety show, Running Man.
Kim Jong Kook and his two kids, Haha and Gary, wanted to start a catchy trend phrase for 2011 which is SEUM DWA.
This two words comes from "seum-ni-da" which means alright/understood in Korean. When pronounced really quickly, it sounds like "seumdwa".
KJK: We are gonna catch them all !
Haha,Gary: Seum Dwa !