be (strictly) for the birds
US /bi fɔr ðə bɜrdz/
UK /bi fɔr ðə bɜrdz/

1.
nul, ridicule, sans intérêt
to be worthless, silly, or not worth considering
:
•
His advice is strictly for the birds.
Son conseil est strictement nul.
•
I think this whole plan is for the birds.
Je pense que tout ce plan est nul.