"Letched" is a variant spelling of the word "leched," which means to act in a manner considered inappropriate or lustful. The pronunciation of "letched" is /lɛtʃt/, with the final "t" indicating that the word is in the past tense. The spelling variation likely arose due to a confusion between the pronunciation and spelling of the past tense form. Despite being considered a correct spelling in some dictionaries, it is not as commonly used as "leched."