His undersides are jagged potsherds, spreading the mud like a threshing sledge.
See, I will make you into a sharp threshing board, new, with many teeth. You will thresh mountains and pulverise them and make hills into chaff.
A club is regarded as stubble, and he laughs at the sound of a javelin.
He makes the depths seethe like a cauldron; he makes the sea like an ointment jar.