The practice of airline customers who have only 5 minutes to make their flight on the other side of the airport, but yet still feel the need to stop at Starbucks (or another coffee counter) for a latte which results in either A) delaying a flight full of customers or B) the "Starbucker" yelling at the gate agent when he/she arrives at the gate and finds out his flight left 5 minutes ago.2

Yet another example of noun verbing, starbucking describes an action anciently known as "going out for coffee".
The verb probably originates from some shopping-mall in Seattle, but is now widely used around the world, in the most diverse places, though almost always by college educated twenty somethings who are always broke but don't mind paying fortunes for useful things like coffee and white mp3 players.

*verb; the act of going to starbucks

Copying the Starbucks™ business-model all across the World on an unprecedented level. Startup companies that has copied the franchise-scheme of Starbucks coffeehouse (small vendors/ neat outlook/ gourmet catering...), are now called 'Startbucks'!

Also, university classes called 'Starbucks studies' are now being taught at some colleges across the United States, too!

Starbucking: (v) to meet with others at high-priced, non-alcoholic beverage retailers for random, comfy-couch conversation and people-watching