I think that the answer is probably 'No' but the rules are so complicated that I'm not entirely sure!
See here for the rules:
http://www.ukba.homeo...k/britishcitizenship/
and here for Wikipedia's attempt to make sense of them!
http://en.wikipedia.o...itish_nationality_law
If you're in the UK, phone the Nationality Contact Centre on 0845 010 5200 for advice.
If you're in Nigeria, contact the British High Commission in Abuja:
http://ukinnigeria.fc...commission/contactus/
Chris