beat against

Ударять обо что-л. My grandmother used to clean her mats by beating them against the wall of the house. — Моя бабушка выбивала ковры об стену дома. The rain was beating against the windows. — Дождь стучал в окна. The bird beat its wings against the bars of its cage. — Птица била крыльями по прутьям клетки. The waves beat against the rocks. — Волны бьются о скалы.