Top Definition
When you are signed into MSN Messenger but appearing offline.
Example 1)

Bob: "Where were you last night? I waited hours for you to come online!"

Terry: "I was there, I guess I must have been onffline, I thought you were quiet!"

Example 2)

Bill: "Hey man can I check my messages on your computer"

Ted: "Sure, but make sure I'm onffline when you log on, my ex is kinda stalking me at the moment"
by cholmeister October 07, 2008
5 Words related to onffline

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