What is the meaning of trash?

noun

• Worthless material that is to be disposed of.
  • synonyms: rubbish, scrap
• Worthless people.
  • synonyms: scum
• Nonsensical talk or writing.
  • synonyms: folderol, rubbish, tripe, trumpery, wish-wash, applesauce, codswallop
• An amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant.
  • synonyms: methamphetamine, methamphetamine hydrochloride, Methedrine, meth, deoxyephedrine, chalk, chicken feed, crank, glass, ice, shabu

verb

• Dispose of (something useless or old. )
  • usage: "trash these old chairs"; "junk an old car"; "scrap your old computer"
  • synonyms: junk, scrap
• Express a totally negative opinion of.
  • usage: "The critics panned the performance"
  • synonyms: pan, tear apart