famdemic 

Everyone in your family is sick with the same shitty germs.

We've got a famdemic in our house this week, no one is going anywhere for a while.

famdemic by Chief Father March 3, 2015

Fandemic 

A series that takes a nation or several by storm selling over a million copies

"Oh yeah i read The Hunger Games, Harry Potter, all the fandemics"

Fandemic by WickedSymmetry January 2, 2015

Fandemic 

Pronounced: Fan-dem-ick
The never ending cycle of a fandom's devolution from a respectable group of fans to a group that relies of shipping, fan-fiction, and inappropriate content that eventually leads to the destruction of a fandom.
(JackAttack on Youtube came up with this magical definition)

J: Jeez, its a shame Five Nights at Freddy's fell to such a fandemic state.

Fandemic by PantryBanana December 27, 2017