Crutch words or fillers like umm..., you know... and like... make their way into a speech unknowingly. These words do not add meaning to the sentence, and often just make a person look like a blabbering fool.
Coca Cola is a carbonated beverage made by the Coca Cola company based in the Atlanta. The brand name originates from its two key ingredients: cocaine and caffeine, which are extracted respectively from the coca leaf and the kola nut, hence its name Coca-Cola.
The Coca-Cola Company has, on occasion, introduced other cola drinks under the Coke brand name. The most common of these is Diet Coke, with others including Caffeine-Free Coca-Cola, Diet Coke Caffeine-Free, Coca-Cola Cherry, Coca-Cola Zero, Coca-Cola Vanilla, and special versions with lemon, lime, or coffee.