Most of us are familiar with "Girl Friend Experience" or GFE and certainly others. The phrase is used extensively and universally yet the phrase's meaning, definition or expectation is known ONLY to the person using the phrase. AND more often than not, "GFE" is used as a selling point or product.
Usher is another . . . "Fetish Friendly". What the fuck does that mean? I'd bet the list of definitions would be as long as the number of persons offering their definition.