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The opposite of a pick up line. (One of) the last things said the morning after.

While a pick up line is designed to start a short term relationship, the let go line is given to end it.
I knew she was finished with me when she gave me her let go line: "Why don't you go ahead and take off so I can poop and get on with my day."

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by bowlweb July 05, 2009
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