screenbathing 

For someone to sit in front of a screen (e.g. computer, television or gaming system) for a long period of time. This activity often results in a screentan; unlike a suntan, screentans make the skin whiter from lack of sunlight. Screentans can also be referred to as screenbleaches for this reason.

Person A:
So what you been up to today?
Person B:
Nothing much, been screenbathing for the last few hours
Person A:
Cool. Don't get a screentan though, they are such turn-
offs

screenbathing by Ultimate_Doom December 22, 2005