* In music: An "infinite phrase" could refer to a musical phrase that seems to go on forever, perhaps through repetition or a sense of endless continuation.
* In literature or poetry: It could be a phrase that evokes a feeling of boundless space or time, or a theme that could be expanded infinitely.
* In philosophy or theology: It might be a concept related to the idea of infinity, representing something without beginning or end.
To understand the meaning of "infinite phrase" in a specific context, you need more information.
Could you provide more context or an example of how you heard this phrase used?