If a woman has been going out with a guy for ages and they openly talk about getting married, they know that they will but he has not yet proposed yet then he is the woman's "Beyonce". The B is for boyfriend
and the "eyonce" is for Fiancee but obviously more recogniseable as a word for the pop star.More than a boyfriend
but not yet a Fiancee. This word is in the same category as recent craze for new words for couples such as "Bennifer" (Ben Afleck and Jenifer Lopez) and "Brangelina" (Brad Pitt and Angelina Jolie)
This is my Beyonce, Brad.