解释】中文意思就是勇气、胆量（balls, guts, intestinal fortitude, Having balls to do something.）

　　例句：

　　He lacked the testicular fortitude to stand up to his boss.

　　他没有勇气反抗他老板。

　　He doesn't have the testicular fortitude to challenge me to a fight!

　　他没有胆量和我斗！