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2 definitions by MikeSixPack

 
1.
switching to incognito (private) mode in your browser to surf the porn sites and not get caught by your girlfriend, parents etc.
Alex: I forgot to clean the cache after visiting YouPorn so my girlfriend get mad at me
Mike: Man, didn't you know there's porncognito mode in your browser?
by mikesixpack May 06, 2014
 
2.
The act of pleasuring yourself under your desk at work while a worker of the opposite sex attempts to discuss work related items on the other side.

Obviously this should only be done with desks that block the view of what you are doing.
Whenever that hot little number walks into my office with her shirt open and cleavage hanging out I have to otismathis myself for 20 minutes until I get some relief.
by MikeSixPack September 24, 2010