strictly for the birds
slang Worthless, stupid, or completely undesirable. Driving is strictly for the birds when you live in a big city—unless you like sitting in traffic! I miss my usual shift—night work is strictly for the birds.
strictly for the birds
not worth consideration; unimportant. informal This expression was originally US army slang. It may be an allusion to the way in which birds eat the droppings of horses and cattle.