The female version of "balls". Meaning very courageous or sometimes foolhardy. For example - "Damn that guy's really got balls to piss on that cops leg." As you may have noticed, women
are not born with
balls but instead have the feminine gonads, ovaries. "Ovaries" do not have the same inspiring ballsy sound as "Balls", hence
"If you had any feminads at all you'd knee that
guy in the nuts the next time
he puts his hand
on your boob."
"Barbara Boxer has awesome, Senate sized feminads."