Also, small frog in a large pond. An unimportant or unqualified individual in a large organization or other setting. For example, Coming from a small school, Sandy felt lost at the state university—a little frog in a big pond. This phrase is the counterpart of big fish in a small pond.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.