somebody can whistle for something
From Longman Dictionary of Contemporary Englishsomebody can whistle for somethingsomebody can whistle for somethingBritish English spokenIMPOSSIBLE used to tell someone that there is no chance of them getting what they have asked for → whistleExamples from the Corpussomebody can whistle for something• You belong on your own block, where I can whistle for you.