Answer:
The sentence "That hot fudge sundae really hit the spot" uses an idiom.
Step-by-step explanation:
An idiom is a phrase or expression that has a figurative meaning different from its literal interpretation. It is a commonly used phrase that has a culturally understood meaning that may not be obvious from the individual words themselves. Idioms are used to convey a particular idea or sentiment in a more colourful or expressive way. They often reflect the cultural, historical, or social context in which they are used. Examples of idioms include "break a leg," "kick the bucket," or "piece of cake."
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