Process of turning a female acquaintance into a friend and quite possibly more.
Guy 1: "You know that girl Sam we met a few days ago?"
Guy 2: "Yeah i remember her"
Guy 1: "I'm tunin' her in."
Guy 2: "Nice one."

Example 2

Guy 1: "How are you involved with so many girls man?"
Guy 2: "I'm always tunin' it in."
by sniper58790 October 22, 2009
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(v.) The act of telling someone something that SOUNDS GOOD, but is PURE BULLSHIT
You not fat sweetheart, you just like the skinny girls, but the bigger version <--- "AUTO-TUNIN"
by WiseWordsOfTa'i March 23, 2010
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