To browse the internet for hours without purpose, as if in a trance.
"I can't believe that I spent the entire night screen sucking."
by F D Morrow June 12, 2007
1 more definition
wasting time online long after you have finished what you signed on to do.
i'd be done with that job if i hadn't got caught up screen sucking.
by gnourtanit January 14, 2006