trash (n.) Look up trash at Dictionary.com
"anything of little use or value," late 14c., perhaps from a Scandinavian source (cf. Old Norse tros "rubbish, fallen leaves and twigs," Norwegian dialectal trask "lumber, trash, baggage," Swedish trasa "rags, tatters"), of unknown origin. Applied to ill-bred persons or groups from 1604 ("Othello"). Applied to domestic refuse or garbage in 1906 (American English).
trash (v.) Look up trash at Dictionary.com
"to discard as worthless," 1895, from trash (n.); in the sense of "destroy, vandalize" it is attested from 1970; extended to "criticize severely" in 1975. Related: Trashed; trashing.