well put it this way, its not a good thing. If you cant get under your car to look at where its coming from then there is nothing we can do for you. My car is leaking oil like a bitch, that is coming from the timing covers so i'd say i am up for crank and cam seals. If you are not careful with a leak you run the risk of running out of oil and destroying engine, or worse case oil getting up around your turbo and igniting causing your pride and joy to go up in flames.

If you know nothing about fixing your car then get it to a mechanic asap to prevent further damage.