the area was named after this guy:
http://www.google.com/search?hl=en&q=thoroughgood+house
here it is on the map!
http://maps.google.com/maps?f=q&hl=en&geocode=&q=thoroughgood+house+virginia+beach&sll=37.0625,-95.677068&sspn=29.440076,59.238281&ie=UTF8&ll=36.895273,-76.127872&spn=0.057934,0.1157&z=13&iwloc=addr&om=0
(you can see the little creek naval base to the north! )