noun

• (slang, uncountable) Anything produced by a process that involves boiling; beer, tea, whitewash.
  ""You're a gent," said the other, straightening his shoulders again. He appeared not to have noticed Winston's blue overalls. "Pint!" he added aggressively to the barman. "Pint of wallop.""
• (archaic) A thick piece of fat.
• (UK, Scotland, dialect) A quick rolling movement; a gallop.

verb

• (intransitive) To rush hastily.
• (intransitive) To flounder, wallow.
• (transitive) To strike heavily, thrash soundly.
  "Tony got walloped round the face by Mike."
• (transitive) To trounce, beat by a wide margin.
  "The other side are bringing out their B-team, so we have to aim to completely wallop them."

verb

• (Internet) To send a message to all operators on an Internet Relay Chat server.