The action you take when something online suprises you so much you find yourself hitting BOTH shift keys to type your response in caps.
When I found out the baby wasn't mine. I had was double shifting my facebook status updates.
by Nate Lavelle August 26, 2011
Suzy told her friends about doubleshifting Jack last night on the way to Thanksgiving Dinner.
by Andy O. February 28, 2006