"Get one's just desserts" means to receive what one deserves, often implying a negative consequence. However, there are various synonyms for this phrase that can be used to convey a similar meaning. Some of these synonyms include "reap what one sows," "get a taste of one's own medicine," and "get what's coming to one." "Reap what one sows" suggests that one will experience the consequences of their actions, while "get a taste of one's own medicine" implies experiencing the same negative treatment that one has inflicted on others. Similarly, "get what's coming to one" indicates that one will inevitably face repercussions for their actions. All in all, these phrases serve to remind us that our actions have consequences, whether good or bad.