예헷 / 데헷 (yehet / dehet) = Is one type of korean Aegyo (cute act). It has no spesific meaning as it’s an aegyo, but it’s rarely used and is considered as an embarrasing act, that losers would do. However, it is also used for fun by “nonlosers” around in Korea.
Note: Many people had discussed these two expressions after they were mentioned by exo in EXO showtime. Exo, in these cases, used 예헷 and 데헷 as in a form of a joke.