This is a follow-up question to Does うるさい have a "negative" connotation. I've seen うるさい written as 五月蝿い. 現代では、is this form used often / at all? What does this have to do with flies (蝿【はえ】) in May? ...
Are there any commonly used known 四字熟語 that use/are 当て字 besides the following? Just crossed my mind, and now I'm curious. 滅茶苦茶 (めちゃくちゃ), 夜露死苦 (よろしく), 無理矢理 (むりやり)