viral
/ˈvʌɪr(ə)l/

adjective
adjective: viral
1.
of the nature of, caused by, or relating to a virus or viruses.

2.
(of an image, video, piece of information, etc.) circulated rapidly and widely from one Internet user to another. "a viral ad campaign"

noun
noun: viral; plural noun: virals

1. an image, video, piece of information, etc. that is circulated rapidly and widely on the Internet.

Cover painting "In The Air" ©️ Beau Cyphre