The phrase "someone's chickens come home to roost" means that the consequences of someone's bad actions or decisions have finally caught up with them. Some synonyms for this phrase include "reaping what one sows," "getting a taste of one's own medicine," "karma hits back," "paying the piper," and "having one's past catch up with them." Each of these phrases implies the idea that actions have consequences, and eventually, those consequences come back to haunt the person responsible for their actions. So, whether you believe in karma or simply the natural order of cause and effect, the phrase "someone's chickens come home to roost" is a reminder that we must be accountable for our actions.