WEB(Definition of bf from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press) Translations of bf. in Chinese (Traditional) 男朋友, (男性)情人(boyfriend的縮寫)… See more. in Chinese (Simplified) 男朋友, (男性)情人(boyfriend的缩写)… See more. in Spanish. forma abreviada escrita de “boyfriend”:, …