The phrase "you wish" is often used to express disbelief or irony toward a statement or request made by someone else. However, there are several synonyms that can be used to convey a similar sentiment. Common alternatives to "you wish" include "fat chance," "dream on," "as if," and "in your dreams." These phrases can be used interchangeably to communicate a sense of skepticism or disbelief, and are often used in a humorous or sarcastic context. Whether you choose to use "you wish" or one of its synonyms, these phrases are a great way to inject some levity into a conversation and convey your feelings in a lighthearted manner.