Emoji Chain
When something is posted in a group chat or server and a continuous train of people react in the same way without stopping.
"I just got a dog!"
(An emoji chain then takes place.)
":D"
":D"
":D"
":D"
":D"
":D"
":D"
(An emoji chain then takes place.)
":D"
":D"
":D"
":D"
":D"
":D"
":D"