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At the campus coffee cart, Gini makes the best drinks her sweet cream latte, a blend of vanilla ice cream and espresso, will put on the pounds, but its cool, smooth taste is worth a trip to the gym.

A comma splice occurs when two complete sentences are incorrectly joined with just a comma. In the example above, no comma occurs in the problem spot. At the campus coffee cart, Gini makes the best  drinks is one sentence. Her sweet cream latte, a blend of vanilla ice cream and espresso, will put on the pounds ... begins the second sentence.

Because there is only empty space between drinks and her, you should call this error a fused sentence.

To fix the problem above, you could put a period after drinks and begin her with a capital H.

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