brief for "separation, comprise, Intercourse You Up." or even the work of splitting up, creating, and consequently sexing with a person's on again/off once again girlfriend/boyfriend. seems to have originated in Hawaii high schools in around 2007. Becoming specially fond of the term "Bu" (quick for "bull", found in everyday greetings normally between guys), "bumusu" has exploded to connote having high intimate prowess with girls. To such an extent, that you regularly go out with, separation, constitute, and sex many women at the same time and/or consecutively in a calculated fashion.