Someone who's addicted to coffee and can't stop drinking it..absolutely loves drinking coffee and usually there aren't alternatives.. Coffeeholics take refuge in fast food chains (which sell pretty bad coffee..) if the local Starbucks or cafes and coffee shops aren't available.
Assistant: Hi Dr. Colleen, may I get you anything?
Dr. Colleen: In fact, yes...I could do a cup of coffee for this half an hour, two fraps. for the next, maybe one cappu. in a couple of hours, and let's do lunch with doughnuts and a latte..that's all..pretty good huh? And today I cut down my coffee intake..impressive!
Assistant: What a coffeeholic..