Англо-русский словарь Мюллера
go at а) coll. бросаться на кого-л. Our dog went at the postman again thismorning. б) coll. энергично браться за что-л. The students an really going attheir studies now that the examinations are near. в) продаваться за какую-л.цену There were perfectly good coats going at $23!