The act of having way too many tabs open 24/7 on their internet browser.
Fred tab whores so much, he actually uses firefox's tab search component.

Joe ran out of ram space due to tab whoring
by TheX13 August 19, 2011
Get the Tab Whoring mug.
Greg has a different courtizan in 5 countries, his whore-tab must cost a fortune!
by Don Juan Whoretab May 2, 2008
Get the whore-tab mug.