A mass fever dream that a large amount of the internet had over the course of the year 2020. We have no idea where it came from, but we do know that it's gone. People who have fallen into its grasps have all joined a cult based around it, but they claim it's not a cult. Memento Mori. Unus Annus.
by U6Luna November 13, 2020

Monika: Hey, have you heard of Unus Annus?
Sayori: No.
Monika: It's a joint channel run by CrankGameplays and a friend. I'm sure you've heard of him.
Sayori: Oh yeah, I know him!
Sayori: No.
Monika: It's a joint channel run by CrankGameplays and a friend. I'm sure you've heard of him.
Sayori: Oh yeah, I know him!
by Nikolettaa July 28, 2020

by ImposterBlob November 5, 2020

by toastedwater October 21, 2020

by SpikeyFrog November 2, 2020

Unus Annus (literally meaning One Year) is a Youtube channel run by Mark Fischbach (Markiplier) and Ethan Nestor (CrankGameplays). Their objective is to do interesting and unique things for one year until they delete their channel (alongside their videos) and stop selling merch.
The channel will be deleted in November 15 2020.
The channel will be deleted in November 15 2020.
by The7Guy September 3, 2020

A Latin phrase meaning, 'one year'. It is also a popular youtube channel created by Mark or also known as Markiplier. He likes to connect this with death and that everything comes to an end. This YouTube channel will eventually be deleted in one year from its creation.
by Duck_Duck November 17, 2019
