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1.
A word used to define zombies that doesn't comply in the traditional meanining or concept of the zombie. A reanimated corpse, is a zombie. Otherwise is a yombie, like those produced by infections, and still aren't technically dead.
George Romeros' Night of the living dead is about zombies.
Resident Evil "zombies" are yombies.
by marton5 July 23, 2013
 
2.
Noun.

Another word for "zombie" for the people who play Call of Duty Zombies because they finally got sick of using the word "zombie."
Person A: You wanna play some multi-player or you wanna play some yombies?

Person B: ...Yombiessss!
by district934 September 28, 2011