When you try to call somebody, but the person is also trying to call you at the exact same time, so both of you get the busy signal.
Ferdinand: 'I called you 3 times this morning, but every time I got the busy signal.'
Jack: 'But I didn't talk to anyone on the phone today! I tried to call you, too, but all I got was the busy signal.'
Jack and Ferdinand: 'Phone call-ision!'
by SocialistElephant November 7, 2015
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