ddong chim
The scary game played by Koreans, scream ddong chim at a large group of Koreans, they will run off screaming. Known as " poop needle " placing your hands as a gun like shape and pretend to stick it up someone's @$$ will give you satisfying results.
hanwool: hey kibum, I have something special
kibum: what?
hanwool: DDONG CHIM!!!
kibum: oh F#CK !!
hanwool: you better run :D