Thanks for the replies guys,
In regard black on black I have asked the student a little more about it today and it is from the Bourne Conspiracy for you film/movie buffs!!! CIA kill squad and the question was from an operative questioning another about the programme they were running. The reply was "It was a kill squad, black on black" and that was it. Which leads me to think the operative meant cut and dried, end of story, but it is not one I'm familiar with- hence asking for your opinions!!
In regard the other, yeh I knew L'oreal was French, but didn't think this was how they spelt it, although I admit I haven't checked. Perhaps Cas would shed some light I believe her french is almost as awesome as her English knowledge.

I guess it adds to the sophistication angle and all that with the marketing.
It's usually about slang from one of the ghetto type scenes that I get asked to fathom!! These two are certainly a little different!!!
Thanks again
Mak