noun

• (colloquial) a large quantity or number
  "Messerschmidts! A whole mess of Messerschmidts!"
• (euphemistic) excrement.
  "There was dog mess all along the street."
• (figuratively) a person in a state of (especially emotional) turmoil or disarray; an emotional wreck
  "Between the pain and the depression, I'm a mess."

verb

• (transitive, often used with "up") To make untidy or dirty.
  "It seems like all you do is cry, eat, and mess your diapers!"
• (transitive, often used with "up") To make untidy or dirty.
• (transitive, often used with "up") To throw into disorder or to ruin.
  "But it wasn't right to be messing another man's sleep with tidal waves that didn't belong to the other man."
• (intransitive) To interfere.
  "This doesn't concern you. Don't mess."

noun

• (obsolete) Mass; a church service.
• (archaic) A quantity of food set on a table at one time; provision of food for a person or party for one meal; also, the food given to an animal at one time.
  "c. 1555, Hugh Latimer, letter to one in prison for the profession of the Gospel a mess of pottage"
• (collective) A number of persons who eat together, and for whom food is prepared in common, especially military personnel who eat at the same table.
  "the wardroom mess"
• (India) a type of restaurant characterized by homely-style cooking and food.

verb

• (intransitive) To take meals with a mess.
• (intransitive) To belong to a mess.
• (intransitive) To eat (with others).
  "Resolved 18. That no Guide or Interpreter whether at the Factory Depot or Inland be permitted to mess with Commissioned Gentlemen or Clerks in charge of Posts; but while at the Depot they will be allowed per Week 4 days ordinary rations..."
• (transitive) To supply with a mess.