An onomatopoeic word for a heavy thud—used when something falls, hits, or lands with a big, heavy noise.
地震で家具がドシンと倒れた。
Furniture fell over with a loud thud during the earthquake.
疲れて彼はドシンと椅子に座った。
Exhausted, he flopped down into the chair with a thud.
上の階から何かが落ちてきて、ドシンという音がした。
Something fell from the upper floor and there was a thudding noise.