the whistle you do when a hot dude/girl walks by. usually considered rude.
Joe wolf whistled when Carrie walked by
by AcousticEmo December 31, 2008
A sound made with pursed lips in appreciation of superior beauty. It is in two parts; the first a rising note and the second a falling note. A wolf was a man on the hunt for women.
A chorus of wolf whistles emerged from the construction site as she walked by swinging her young, round hips.
by Eric Peterson July 07, 2005