"콩줍콩줍" has not the same meaning with "두근두근". 콩줍콩줍 is not a real Korean word but an artificial word. 콩줍콩줍 is a name of corner of "키스 더 라디오" 키스 더 라디오(Kiss the Radio) is a popular radio program aired on KBS Cool FM airing from 22:10 to 00:00 KST everyday. 콩줍 is from "콩을 줍다" meaning pick up a bean 콩 means "bean" 줍다 means "pick up" "콩을 줍다" means "pick up a bean" 콩줍콩줍 means "let's gather beans" 콩 also means a name of application of KBS. With it, you can listen program of Radio and send message to the MC of program.