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2.
when the stupid, whichever, IM falls down and it accidentaly gets you offline and you have to get back online, because the whole things got shut off.
I was talking with my friends on IM when the stupid thing offlined.
by FreakGD September 07, 2007
 
1.
To block someone from an instant messaging program, thus having the person view you as "offline" instead of being available for chat.
i)I offlined Elizabeth because she talks too much about her dogs, I don't even care about dogs

ii)I don't see him online anymore on MSN...he probably offlined me...who will take my dogs to the doctor? Can dogs use MSN?
by Doyouwantafriend April 26, 2008