chúpalo

it's the spanish version of "suck it" it is used to express that you won't do what you are asked to do.

Something some latinamericans say when they face adversities with other people, to let them know you understand why they feel like that, and that you're sorry you cannot change the things you've done (or about to do), so you just hope the other can move forward from it and keep a good relationship despite the past