2) A woman who is so bitchin' and intelligent that most men fear openning their mouth in her presence, much less making a sexual advance.
"Woo Wee! Look at that ball bustin' honey!"
2) A female who humiliates, belittles, injures, chastises, dihabilitates, or otherwise causes distress to a man through non-physical means.
2) "That Amy is a real ballbuster; not only did she kick me in the nuts under the table, she used my weakened state to make me agree to her plan."
(1) A very difficult and daunting undertaking;
(2) An emasculater; a female who habitually demeans and degrades men.
(3) Any authority such as a supervisor or a military superior who overworks or over-criticizes their subordinates.
(2) "She ballbusts guys by mocking their penis size and income."
(3) "Sgt. Whacko wouldn't let me take a break until I got the entire hole dug. What a ballbuster!"