"Mocha" has two meanings in the context of coffee.
Mocha coffee (or mocha java) is an arabica coffee grown near the seaport of Mocha, Yemen[?] (thus the name). This coffee is known for its undertones of chocolate, although it does not have any actual chocolate in it.
Mocha, used by itself for the name of a beverage, usually means a beverage made with coffee and cocoa. The word is also sometimes used to describe something with the flavor of coffee and chocolate (e.g. mocha ice cream).
Mocha[?] is the seaport of Yemen originally famous as the source of coffee.
Mocha[?] is also the name of a rapper.
