snapchat thing 

when you have a thing with someone on snapchat but not irl

we only have a snapchat thing

snapchat thing by lobstr123 October 25, 2017

snapchatting 

The verb form of using the application Snapchat.

Person 1: "Stop taking selfies! Don't you have enough pictures of yourself?"
Person 2: "I'm not, I'm snapchatting!"
Person 1: "Ohhh okay, carry on."

snapchatting by KaoruTsukino December 20, 2014