can whistle for
can (just) whistle for (something)
A phrase used to emphasize that something is unlikely to happen. After the way she treated me yesterday, I refuse to do her laundry anymore—she can whistle for it from now on!
can (just) whistle for something
Fig. can just forget about having something. The last time Mary came over for dinner, she was downright rude. If she wants dinner at my house again, she can just whistle for it! I asked the boss for a promotion. He told me I could whistle for it.