A random event or thing that, quite frankly, is creepin'. Lurking variables can occur at any time, and be used as an excuse for almost anything. Only really hairy math teachers can use this term to its full potential.
-"Billy, why were you out so late last night?"
-"Lurking variables, Mom."

-"Crikey! That crock almost bit me in my lurking variables!"

-"Now class, the lurking variables in measure four are being played wrong, remember the lurking variable rule. If a note has a lurking variable next to it, it will be played that way throughout the measure unless another lurking variable occurs within that same measure.

by Mi Pito Smith January 28, 2009
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a cost that varies directly with output
I will have to define my variable cost after I take out some money.
by BrainsofBeauty September 21, 2015
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When a driver can not keep their vehicle at a constant speed, or someone who does not use cruise control causing other drivers to get irritated. Also known as VSS
This idiot on the highway has variable speed syndrome (VSS) and it is making me angry.
by Buckrutter89 November 28, 2011
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Used to refer to a member of the opposite sex with whom you are sexually involved with, but you don't want the general population to know about him/her because you aren't exclusive with this individual. Also commonly referred to as a V.I.E. Typically used when the certain individual is too stupid to realize they are just being used for sex.
John: "Why didn't you bring Lauren to the office Christmas party?"

Ben: "Because she is the my V.I.E. Shhhh...before someone hears you! I am trying get with the new girl tonight."

John: "Your what?"

Ben: "Variable interest entity; we have sex occasionally but we aren't exclusive. Nor is she marriage material."
by nosemaj September 11, 2008
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Simple way of saying the entire problem is fucked up beyond belief and unsolvable
The building 5 project has become a multi variable quadratic equation and it's difficult to provide a concise answer to your question regarding the delays.
by Just got Ramras'd June 17, 2015
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