We rarely think about the words that make up our daily vocabulary except when we hear people use them in a way that we are not familiar with.
When it comes to petrolheads, we have a dictionary which is almost perpendicular to that of ordinary humans. Something which might mean one thing for them means something totally different for us.
Here are a few ordinary words that mean something totally unique to those with petrol running though their veins. How many can you recognise?