Top Definition
When you are working on the computer and get up for a minute, only to find someone else is using it and may have deleted all of your work. This happens a lot with teenagers. The person computer blocking you 65% of the time is using Facebook.
"Great, now I gotta stay up all night tonight and finish this essay because my mom was computer blocking me for 3 hours.
by RKOver24 October 24, 2011

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