Answer: wolfwhistle

AnswerCrossword Clue
WOLFWHISTLEGirl watcher's approval
WOLFWHISTLEUnrefined appreciation for a looker
WOLFWHISTLEShrill "compliment" to a pretty woman
WOLFWHISTLEIt originated from the General Call made with a boatswain's pipe
WOLFWHISTLESound from an ogler
WOLFWHISTLETwo-note male come-on
WOLFWHISTLEWould-be Romeo's call
WOLFWHISTLEFlirting sound
WOLFWHISTLELupine come-on?