busrebustle busthu (Dimasa) Contributed by: Uttam Bathari on 2009-03-23 1. (Common Noun-Masculine) The husband of a wife's sister. পত্নীৰ বায়েক বা ভনীয়েকৰ গিৰীয়েক । English: brother-in-law, Assamese: শাল-পতি, Dimasa: busthu