Did somebody say there was a housing slump? Someone forgot to tell the buyers of a Gravesend home that just sold for $10.26 million, an amount topping the charts of 2009 home sales in the borough. The building at 2111 East 2nd Street (near Avenue U) was bought by an unknown party, spurring Brownstoner to scoff, “Holy moly! … It’s definitely the biggest sale of this year, and probably one of the top 10 or so biggest house sales in the borough ever.” Property Shark records say it’s an 8,206-square-foot one-family house that was built in 1998, and racks up nearly $90,000 in property taxes. Yowzers!