Webster's Revised Unabridged Dictionary · 1913

Wallop

Wallop , intransitive verb

[Compare OFlem. walop a gallop; of uncertain origin. Compare Gallop.]

To move quickly, but with great effort; to gallop. [Provincial English & Scottish]

Wallop , noun

A quick, rolling movement; a gallop. [Provincial English & Scottish]

Wallop , intransitive verb

[Probably from Anglo-Saxon weallan to spring up, to boil or bubble. r147. See Well, n. & v. i.]

1.
To boil with a continued bubbling or heaving and rolling, with noise. [Provincial English] — Brockett
2.
To move in a rolling, cumbersome manner; to waddle. [Provincial English] — Halliwell
3.
To be slatternly. [Provincial English] — Halliwell

Wallop , transitive verb

1.
To beat soundly; to flog; to whip. [Provincial English, Scottish, & Colloquial United States]
2.
To wrap up temporarily. [Provincial English]
3.
To throw or tumble over. [Provincial English]

Wallop , noun

1.
A thick piece of fat. — Halliwell
2.
A blow. [Provincial English, Scottish, & Colloquial United States]