Wallop meaning : A heavy blow, punch. A person's ability to throw such punches. An emotional impact, psychological force. A thrill, emotionally excited reaction. Anything produced by a process that involves boiling; beer, tea, whitewash. A thick piece of fat. A quick rolling movement; a gallop. To rush hastily. To flounder, wallow. To boil with a continued bubbling or heaving and rolling, with noise. To strike heavily, thrash soundly. To trounce, beat by a wide margin. To wrap up temporarily. To move in a rolling, cumbersome manner; to waddle. To be slatternly.