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The act of "sexting" using snapchat
"Aye bro, wanna hang out?"

"Nah bruh bouta fapchat the bae"
by jesusjacker August 21, 2014
An app that lets you send photos of yourself for friends to fap to for a limited time, then they are deleted.
"Hey, this hot girl sent me a picture of her boobs the other day"
"Sweet, let me see?"
"Sorry, it was a fapchat"
by GushingGrannies September 03, 2013