There are a multitude of synonyms for the phrase "April Fool," each with their own nuances and connotations. Some common options include "prankster," "jester," "trickster," and "hoaxer." These words all evoke a sense of mischievousness and a desire to fool others. Other synonyms might include more specific terms like "ruse," "deception," or "sleight of hand," which refer to the methods and techniques used to pull off a prank or joke. Ultimately, the choice of synonym will depend on the context and tone of the conversation, but there are plenty of fun and playful options to choose from.