The phrase "big pond" is a metaphor that refers to a situation where someone is in a large and competitive environment. It usually emphasizes the feeling of being small or less significant among others who are more experienced or successful.
Sentences with «big pond»
Those are big ponds with lots of fish swimming in them. (slaw.ca)
I mean, when I speak to him I feel like a small fish in a very, very, very big pond, but I'm trying. (businessinsider.com)
Eventually, you'll begin to feel like a very small fish in an extremely big pond. (topresume.com)