wolf whistle

noun
1.
a wolf call made by whistling, often characterized by two sliding sounds, a peal up to a higher note and then one up to a lower note and down.
2.
a similar whistle used by a man to express physical attraction to a woman.
Origin
1945-50
British Dictionary definitions for wolf whistle

wolf whistle

noun
1.
a whistle made by a man to express admiration of a woman's appearance
verb
2.
when intr, sometimes foll by at. to make such a whistle (at someone)
Slang definitions & phrases for wolf whistle

wolf whistle

noun phrase

A two-note whistled expression, esp of male appreciation for the sexual attributes of a woman (1940s+)