kick (someone or something) to the curb
To discard, abandon,

or dismiss someone or something that has become redundant, obsolete, useless, or unwanted.

1-I can't believe that after 20 years of hard work the company would just kick me to the curb like that!

2-I think it's about time we kick this old computer to the curb.

3-I heard Jenny kicked her boyfriend to the curb last night. They must have had an awful fight!

在这几个例句里汉语的意思大概分别是—

1-抛弃了，一脚蹬了

2-淘汰，扔了，更新

3-甩了，踹了，掰了

以上理解为个人解释