whopping

(verb) hit hard. Synonyms: whack, wham, whop, wallop. Examples: "The teacher whacked the boy."

(verb) hit hard. Synonyms: sock, bop, whop, whap, bonk, bash.

(adj) (used informally) very large. Synonyms: humongous, banging, thumping, walloping. Examples: "A thumping loss."

(adv) extremely. Examples: "They all were whopping drunk."