spirit of Arabian folklore, frequently depicted as being imprisoned within a bottle or oil lamp and as being capable of granting wishes when summoned.

Phrases let the genie out of the bottle — used in reference to doing or allowing something which leads to consequences that cannot be undone. "once you let the Open Source genie out of the bottle, it will be impossible to get it back in" Origin. make any wish you want it can be anything you desire and there are no rules so go wild