Be (strictly) for the birds American slang
Used to describe something frustrating, annoying, pointless or unimportant
This exercise is strictly for the birds! It is easy yet time-consuming.
I still have to do this task even though it's for the birds.
be less importance, less outstanding in comparison with something else
Used to tell someone to go away and stop bothering you
Used to refer to an annoying or obnoxious person
To attempt to do something but produce no result or effect
This phrase is used to describe something very modern or updated or something that no longer looks like what it's used to.
It has been a long time since I left my high school, and now I have to admit that it's certainly not your father's high school anymore.