knocks β to strike a sounding blow with the fist, knuckles, or anything hard, especially on a door, window, or the like, as in seeking admittance, calling attention, or giving a signal: to knock on the door before entering.
dodders β Third-person singular simple present indicative form of dodder.
flaps β something flat and broad that is attached at one side only and hangs loosely or covers an opening: the flap of an envelope; the flap of a pocket.
whips β to beat with a strap, lash, rod, or the like, especially by way of punishment or chastisement; flog; thrash: Criminals used to be whipped for minor offenses.
flounder β to struggle with stumbling or plunging movements (usually followed by about, along, on, through, etc.): He saw the child floundering about in the water.
heaves β to raise or lift with effort or force; hoist: to heave a heavy ax.
lurches β Archaic. the act of lurking or state of watchfulness.
writhes β to twist the body about, or squirm, as in pain, violent effort, etc.