Freudian slip means you accidentally reaveal the truth. Your subconcious mind makes u perform a action you didn't want to reaveal to someone.May be your brains way of setting a destiny that you thought only you could control the outcome of. A person may reaveal something subconsiously they want to keep conciously secret by preforming a reaction to a particullar situation. A fruedian slip can be perfomed verbally, memory, and/or physically to accidentally reveal the truth.In other words you accidentaly reaveal your secret thoughts, memory, or actions to ensure your possibly predetermend future.
A person performs a freudian slip to cause a reaction that will ensure a subconciously desired destiny.