1 definition by Fount of Wisdom

A phrase used to communicate that the associated statement is candid, honest, and open. It is commonly used among hipsters and those in our culture assigned to defining what is cool, reaching the pinnacle of its use in late february of 2010.
"her makeup is out of control, not gonna lie"
"not gonna lie, your profile pic looks like an eharmony ad"
by Fount of Wisdom February 22, 2010
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