ZOMG

http://www.urbandictionary.com/

想不到原来存在这种东西的

Urban Dictionary is the slang dictionary you wrote.

很yeng吧？

举例，

zOMG is a varient of the all-too-popular acronym "OMG", meaning "Oh My God". The "z" was originally a mistake while attempting to hit the shift key with the left hand, and type "OMG"

我从不知道这个东西……