What is the meaning of nuts?

noun

• Usually large hard-shelled seed.
  • synonyms: nut
• Egyptian goddess of the sky.
  • synonyms: Nut
• A small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt.
  • synonyms: nut
• Half the width of an em.
  • synonyms: en, nut
• A whimsically eccentric person.
  • synonyms: crackpot, crank, nut, nut case, fruitcake, screwball
• Someone who is so ardently devoted to something that it resembles an addiction.
  • usage: "a golf addict"; "a car nut"; "a bodybuilding freak"; "a news junkie"
  • synonyms: addict, nut, freak, junkie, junky
• One of the two male reproductive glands that produce spermatozoa and secrete androgens.
  • usage: "she kicked him in the balls and got away"
  • synonyms: testis, testicle, orchis, ball, ballock, bollock, nut, egg

verb

• Gather nuts.
  • synonyms: nut

adjective

• Informal or slang terms for mentally irregular.
  • usage: "it used to drive my husband balmy"
  • synonyms: balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nutty, round the bend, around the bend, wacky, whacky