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
Said when one is looking back on something enjoyable or worthwhile in the moment that it was happening even though it was impermanent
The party came to an end, but it was fun while it lasted.