* A regional or colloquial phrase: Specific regions or communities might have unique expressions.
* A nickname or play on words: It could be a shortened version of a name or a humorous reference to someone named Freddie.
* A misheard phrase: Perhaps it's a misremembered or mispronounced version of a different phrase.
If you can provide more context about where you heard this phrase, it might be easier to figure out its origin. For example, was it used in a specific movie, song, book, or by a certain group of people?