verb

• (intransitive, of a liquid) To shift chaotically; to splash noisily.
  "The water in his bottle sloshed back and forth as he ran."
• (transitive, of a liquid) To cause to slosh.
  "The boy sloshed water over the edge of the bath."
• (intransitive) To make a sloshing sound.
  "His boots were so completely soaked that they sloshed when he walked."
• (transitive, of a liquid) To pour noisily, sloppily or in large amounts.
  "The coffee was nice and hot, so she sloshed some into a cup and went back to her desk."

noun

• (countable) A quantity of a liquid; more than a splash.
  "We added a slosh of white wine to the sauce."
• (countable) A sloshing sound or motion.
• (uncountable) Slush.
  "Shoes and socks, soaked and frozen in the mud and icy slosh, did little to protect their feet."
• (slang) Inferior wine or other drink.
  "In the Midi, Grenache dominates most of the traditional appellations. Corbières, Minervois, Fitou, Faugères — these were once bywords for rough-and-ready red slosh."

noun

• (computing, slang) backslash, the character \.