Definition & Meaning of "over the top"

What is the origin of the idiom "over the top" and when to use it?

The idiom "over the top" is thought to originate from military slang, referring to soldiers who went over the parapet or trench in a reckless or overly aggressive manner during World War I. In contemporary usage, it can refer to anything that is excessively dramatic, extravagant, or exaggerated, whether in a positive or negative context. It is commonly used in both spoken and written English to describe something that is excessive, extravagant, or exaggerated to the point of being extreme or unreasonable.