Top definition
Letting a homeless man use your telephone to make an important call and he accidentally calls one of your friends.
Susie: "Was that a butt dial?"

You: "No, I'm sorry about that. You know Jimmie Jamz, the homeless guy who always hangs out on 12th and Walnut? Well, I let him use my phone and he called you. It was a Rack Dial."
by James Hides August 09, 2012
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