Combustion literally means the process of burning something . So he was making a joke that combustion was started in the Stone Age . Basically , you weren ' t specific enough about what type of combustion was invented . What you ' re referring to is the internal combustion engine a machine that can create a burning and in this case , explosive reaction and use the power of that explosion to move vehicle . <| sep |> You remind me of an uglier Sasha Grey , maybe would bang you just because of it , but I doubt you have any deep throat skills . <| sep |> All performances were good . There was no weak link . <| sep |> You don ' t really get a listers on those kind of shows , so I wouldn ' t expect non Brits to know who those kind of celebs are . In fact , a lot are barely celebs , more like comedians etc who you might recognise on the street but wouldn ' t be star struck .