throw away on (someone or something)

throw away on (someone or something)

To waste, squander, or misuse something because of or for the benefit of someone or something. A noun or pronoun is used either before or after "away." No wonder you don't have any savings—you keep throwing it away on junk you don't need! I can't believe I threw my youth away on such an unfulfilling job. Don't throw your time and effort away on people who don't appreciate your efforts.
See also: away, on, throw
Farlex Dictionary of Idioms.

throw something away on someone or something

to waste something on someone or something. I won't throw any more money away on your brother-in-law. I've thrown away too much money on that project.
See also: away, on, throw
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • add in
  • (someone or something) promises well
  • all right
  • a/the feel of (something)
  • (I) wouldn't (do something) if I were you
  • (have) got something going (with someone)
  • a straw will show which way the wind blows
  • accompanied by
  • accompanied by (someone or something)
  • accompany