What is Cake Zombie?
1.
Someone so massive that they're virtually unable to move by themselves. Also, they tend to rarely talk about anything but food. Generic tagline, as opposed to "Braaaaaaains" is "I'm...just...so...*wheeze*...hungry".
They may be placated with an offering of a sheet cake, hence deriving their name.
"Jesus Christ, dude! Cake Zombies!"
"Throw a sheet cake and grab your walkin' shoes, they'll never catch us."
See