Okay so here is the anecdote.
I was walking towards the train station from work through a road where it is known to be quite rough. Outside one of the houses stood a little boy about 2-3 years of age, behind him stood his mother/ aunt or other grown up female relation and opposite him were two men of about 30+ years of age. As I walked passed them the little boy grinned at me and said "get your tits out". I walked on but was by his usage of this phrase. He repeated it louder after I had walked a good few yards.
I am no prude but generally find this phrase distasteful at any age but from a 2/3 year old? What's more, the adults around him all burst into fits of giggles. Why? I can't help but believe that he was made to say it for a laugh. I don't judge the little boy, it's these grown ups who not only didn't tell him off but laughed with him!