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1. (used informally) very large
   - humongous, banging, thumping, whopping, humungous

1. A sound defeat
   - thrashing, debacle, drubbing, slaughter, trouncing, whipping, débâcle

1. Hit hard
   - whack, wham, whop
    
2. Defeat soundly and utterly
   "We'll wallop them!"

Derived forms: wallopings

See also: big, large, walloper

Type of: defeat, get the better of, hit, licking, overcome

Encyclopedia: Wallop