jencamjack 

when someone steals or borrows your camera and takes a picture of themself pouting or a similar pose, and leaves you to find it only when you get your camera back.
The picture must be taken by the person who is in the picture, the 'jencamjacker'.
It can also be done in groups, this would be called a 'gangcamjack' but must not include the owner of the camera.

girl - *flicking through pictures taken on the previous night at a club or party*. Omg charlotte, when did you take this picture of yourself?
charlotte- when you went to the toilet and asked me to look after your stuff. That was a pure jencamjack

jencamjack by Jasminda August 9, 2012