"You don't have balls"
Ok but this can easily be used like a metaphor no? Whem there is nothing "sporty" going on. And with an insulting tone of voice? I mean, if I would say to a man in english... you have a small flag pole... wouldn't that obviously be seen as an insult refering to his male organ, unless of course he actually has a flag pole in his garden... just wondering if it would be understood as an insult.. for learning's sake of course :-)
'hamna mipira' is not accepted as a correct answer, but I think it should be.