The opposite of black coffee. Where black coffee has no cream or sugar, white coffee has loads of sugar and mounds of cream, thus giving it a white appearance.
Mostly drunk by trendy American college kids at Starbucks who like to be "hip" by drinking coffee even though they can't stand the flavor.
Trendy kid 1: "Hey, man, you wanna get some coffee? It's totally groovy!"
Trendy kid 2: "Sure, man, let's go to Starbucks, where all the rad kids hang out!"
Trendy kid 1: "I'll have a tall frappucino with an overpriced sandwich."
Trendy kid 2: "And I'll have a regular coffee, but put lots of cream and sugar in it. I only drink white coffee."