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.
by T. Grissom August 28, 2006
 Get the slipmug.
Get the slipmug. 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 9, 2004
 Get the the slipmug.
Get the the slipmug. by galacticbookbabe March 10, 2017
 Get the Slipmug.
Get the Slipmug. by Stephan Armstong February 22, 2009
 Get the Slipmug.
Get the Slipmug. Abbreviation for a pay slip.
by acab1312 November 21, 2011
 Get the Slipmug.
Get the Slipmug. by spookyteddy November 23, 2009
 Get the slipsmug.
Get the slipsmug. 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.
Broken up but still sleep together/hook up.
Emphasized based on likelihood of reunion.
by Slipping December 19, 2013
 Get the Slippingmug.
Get the Slippingmug.