解释下词组all washed up的意思

all washed up.大家都知道,wash就是洗东西的“洗”.但是,all washed up的意思是彻底完蛋,和乾净不乾净毫无关系.下面这位女士在和她妹妹说一个他们都认识的朋友：
例句-3:Did you hear that Gloria's marriage is all washed up?She found her husband was seeing another woman,so she packed up,took the kids and moved out.Now she's suing for divorce.
她说：你听说了没有,格洛里亚发现她的丈夫有外遇,因此她收拾起自己的东西,带着孩子搬出去了.现在,她向法院提出要离婚呢!
下面这个例子是关于一个染上恶习、到最后破坏自己生活的人：
例句-4:That man over there used to be one of the best players in baseball.But then he started drinking,turned into an alcoholic,and just two years later he was all washed up.
这句话的意思是：那边那个人以前是最好的棒球运动员之一.但是,后来他开始喝酒,逐渐酗酒成习.这样,只过了两年,他的棒球生涯也就完蛋了.