1. When a person makes the mistake of not staying alert or focused, and as a result they lose out. 2. When something happens and a person is unaware of what happened.
Man, if you slip you gonna lose all yo money.
by T. Grissom August 4, 2006
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When you wake up in bed with some nasty chick/guy and you make an emergency exit without waking him/her up.
"I woke up in the room with that ugly ass broad and I needed to give her the slip but she was wrapped all around me!"
by Nikki March 10, 2004
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A picture of someone, in which it is classed as a mugshot but they look good.
"Oh, can you take a slip of me please?"
by galacticbookbabe March 10, 2017
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A displeasant, unruly, untrustworthy, untruthful person of german or nazi decent.
My science teahcer, is such a slip.
by Stephan Armstong February 23, 2009
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Skint for the weekend, wish my slip would come a week earlier.
by acab1312 November 11, 2011
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a term for shoes. Preferably sneakers or slip-on shoes.
went to West 49 to pick me up some new slips.
by spookyteddy November 21, 2009
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When a romantic relationship has been terminated but the people involved continue to sleep together.

Broken up but still sleep together/hook up.

Emphasized based on likelihood of reunion.
"Jordan and Jamie broke up a while ago but they're definetly still slipping."
by Slipping December 19, 2013
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