When you're instant messaging with one person and then you leave the conversation to chat with someone else.
by Crystal Murphy March 23, 2006
when you are on IM and you are "chatting" with your significant other and one or more other people at the same time!
I cannot believe that he was cheat chatting on you last night! He actually had the nerve to be talking to you, his girlfriend and some other girl at the same time! What a jackass
by DLux & Tiffypoo May 24, 2007
"I chat-cheated on four guys last night. It was getting really confusing, and I had to pull out some weboflage when my boyfriend came into the room."
by TajUK January 17, 2007
This occurs when someone you are talking to on Facebook chat accidentally messages you something intended for someone else.
Me: "Dude I was talking to Stef last night and she said I was good looking for a black guy.."
John: "You're not black..."
Me: "I know... I don't get it.."
John: "A typical example of Facebook Chat Cheating my friend.."
Me: ?
John: "You're not the only one she's talking to ;)"
John: "You're not black..."
Me: "I know... I don't get it.."
John: "A typical example of Facebook Chat Cheating my friend.."
Me: ?
John: "You're not the only one she's talking to ;)"
by Kotnusfreak May 14, 2011