When you're having a conversation on snapchat and open a message too long after it's sent so you forget what the conversation was about.
by Unique username July 23, 2017
When you snapchat someone using a caption and it takes them so long to respond that you forget what you initially asked and/or told them.
Bob: "Taylor just snapped me and said yeah she'll go with me"
Andrew: "Where?"
Bob: "Damnit, I got snapchat amnesia again. I sent that snap like 6 hours ago."
Andrew: "Where?"
Bob: "Damnit, I got snapchat amnesia again. I sent that snap like 6 hours ago."
by SometimesHilarious May 30, 2016