"The Zombies" happen after a night of smoking marijuana. To have "the zombies one would feel groggy and slow (still high) for 1-5 hours after waking up. "Some zombies" is also an acceptable phrase.
John Sample "Man, i got the zombies and I'm going to go take my midterm."
$+33\/: "Bummer d00d."
$+33\/: I got some zombies goin broski.
Broski: Double plus uncool.
A seemingly disposed fart, that you have to walk away from a group of people to disguise, and it creeps back up to you and your friends and one of them pukes.
A fart that someone smells and they make a "uuuuuuhhhggggg" screeching zombie noise.
Watch out Tommy" "uuuuuuhhhggggg" "dude, i think he is dead." "Nope, I just zombie farted him.