Definitions of trash:

• noun:   worthless people
• noun:   amphetamine used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
• noun:   worthless material that is to be disposed of
• noun:   nonsensical talk or writing
• verb:   dispose of (something useless or old)

  Example: "Trash these old chairs"

• verb:   express a totally negative opinion of