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1.
To casually use another person's web browser while not changing any of their open windows. Most commonly this phenomenon occurs in a casual setting with a lap-top style computer.
Guy who needs to check email: "Hey, you mind if I open up a tab?"

Gal not using computer: "Sure, just make sure you close it out when you're done."
by DoctorZee November 21, 2009

Words related to open up a tab

brb computers email gmail technology web browser