: It doesn't seem fair that their cover-girl looks should obscure the vast athletic skills displayed between the lines
A model or celebrity whose likeness appears on the cover of a magazine; a beautiful and glamorous young woman (1915+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with cover girl
An attractive woman whose photograph is featured on a magazine cover; also, a woman attractive enough to be so featured. For example, All models hope to be cover girls some day, or She's gorgeous—a real cover girl.
[ c. 1910