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The act of unwittingly dialing one's own cell phone, often keeping an open line and allowing the unintended call recipient an amusing eavesdrop session.
Sally (via text): Hey, did you just try to call me?
Joe (via text): No.
Joe checks call log, then (via text): Oh, snap! I just accidendialed you! How much of the past 20 minutes did you hear??
by adventurefighter June 10, 2010