Yes, trash is a Scrabble word!

Verb

1. Dispose of (something useless or old)

2. Express a totally negative opinion of

Noun

1. Worthless material that is to be disposed of

2. Worthless people

3. Nonsensical talk or writing

4. 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