Meaning of the word "for the birds" in English

What does "for the birds" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

for the birds

US /fɔːr ðə bɜːrdz/
UK /fɔː ðə bɜːdz/

Idiom

of no value; worthless or undesirable

Example:
His advice was strictly for the birds.
This new policy is for the birds; it won't solve anything.