Going off the map for a period of time to peruse places in an unrecognizable fashion. This is normally done to satiate a curiosity of yours that you are to ashamed for even a single friend to be aware of.
This originates from the incognito tab on most internet browsers. Going incognito prevents any cookies or search engine history from being saved.
Matt: Where the hell is Joey?
Zeeshan: On my Facebook timeline, I think I saw him like and then unlike the status of this peculiar store in Mission. I bet he's going incognito for a couple of days.