Wolf-whistling

A wolf whistle is a distinctive two-note glissando whistled sound made to show high interest in or approval of something or someone (usually a woman), especially at someone viewed as physically or sexually attractive.

[6][7] According to Adam Edwards of Daily Express, the wolf whistle originates from the navy General Call made with a boatswain's pipe.

The General Call is made on a ship to get the attention of all hands for an announcement.

It was eventually picked up by passers-by, not knowing the real meaning of the whistle, and passed on.

[8][better source needed] During a 2015 broadcast of A Way with Words, doubt was cast upon this explanation by lexicographer Grant Barrett, who noted that it was very thinly supported.