To show keen appreciation; show desire: He's still drooling for Marilyn Monroe(1940s+)
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
Examples from the Web for drool over
Contemporary Examples
My friends all seemed to drool over churlish boy-band types.