kick to the curb 踢到一边去。= To discard, abandon, or dismiss someone or something that has become redundant, obsolete, useless, or unwanted.
curb 用作noun [C] (CONTROL)控制；限制，约束；抑制。

【例句】

You must try to put a curb on your bad temper/spending habits.
你必须尽量控制你的坏脾气／大手大脚的习惯。

I heard Jenny kicked her boyfriend to the curb last night. They must have had an awful fight!
听说珍妮昨晚跟男友分手了，他们一定大受打击。