심쿵 (shim-koong) is a Korean slang term used to describe that your heart is racing really fast. It takes the first word of 심장 (shim-jang; heart) and 쿵쾅쿵쾅 (koong-kuang-koong-kuang; beating sound the heart makes) to form 심쿵. This word is widely used amongst many millennials to express their heart has been "attacked" by someone's good looks, manners, and/or actions.
Whether you're single af or in a relationship, give these points a try this Valentine's Day! You'll be sure to win her heart.