Someone who sends the same Snap to multiple people without each of them knowing.
Kendra: *sends dog filter to Michael*
Michael: Hot!
Kendra: *sends same Snap to Dijon*
Dijon: Hey Michael, look at this Snap Kendra sent to me!
Michael: That dirty Snapcheater! She sent me the same photo!
by phanic at the disco August 24, 2016
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The act of sending personal pictures to multiple friends on Snapchat. When you find out that someone else you know received the same picture you thought was just for you, you've been Snapcheated on.
Guy 1: "Oh yeah, I really think she likes me. Last night, she sent me a picture of her in bed, blowing me a kiss."

Guy 2: "Sounds like she's Snapcheating on you, because I got the same one! She is soooo hot!!"

Guy 1: *sob*
by Running Clothesline April 18, 2013
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Sending pics or chats over Snapchat to people who is not your significant other.
If he's snapcheating with you, he will do it when you're together too.
by Betty Harder November 18, 2017
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Sending intimate snaps to more than one person, including posting to their story.
1: "Did you see Erica's Snapchat?"
2: "Nah"
1: "Serious nip slip, bro."
2: "That's my girl, man. How the fuck did you see that?"
1: "Everyone got it, its on her story!"
2 : "Fucking snapcheater."
by atlasgenius January 4, 2016
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