According to my ex wimmin go through stages in their response to Wolf Whistles:
(i) The first few makes them giggle with their mates
(ii) As they get older they hear the whistle and think "Bloody Cheek" and pretend to ignore it
(iii) They then reach a stage where a whistle makes them feel really good about themselves and they rush to tell someone
(iv) A bit later in years they think "He's taking the Piss!"
(v) Lastly they think "Oh Fvck! I've got my skirt caught up in my support tights again"