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.