2. (adj.) Fail
3. (noun) Argubly one of the BEST voices in Super Junior (a thirteen-member boy band in South Korea).
See also: fail, creeper, camera whore
Leeteuk: cus Yesung was in your room last nite
2. Kangin: Crap! I Yesung'd my math test, now I have a D in that class!
3. MC: Nice song!
Minho: ikr! sounds like Yesung