in a solid mass
Люди сидели всплошную на трибунах.
People were sitting shoulder to shoulder in the stands.
Дома стояли всплошную вдоль улицы.
The houses stood in a solid row along the street.
Деревья росли всплошную вдоль дороги.
The trees grew thickly along the road.
WiktionaryPONSbab.laReverso