a word or phrase used by members of some in-group, having little or imprecise meaning but sounding impressive to outsiders
See buzzword in American Heritage Dictionary 4
(bŭzˈwûrdˌ)
noun
A word or phrase connected with a specialized field or group that usually sounds important or technical and is used primarily to impress laypersons: “‘Sensitivity’ is the buzzword in the beauty industry this fall”(ADWEEK).