Yes the gift of tongues means you can speak to lots of nationalities about Christ when needed. Letting out spongbob war cries mixed with caveman grunts while jumping up and down is called insanity.
it is actually shocking the lengths people go to be (holy spirit filled) in another thread someone showed me a video of this famous preacher and everyone falling down over each other and him laughing like a maniac apparently mimmicking holy spirit laughter which in my opinion is a bunch of nonesense and I couldn't even finnish the video it was just to disturbing.
the gift of tongues is a vastly misunderstood gift and it isn't one you can just practice you have to be given the gift and when you are given it there is actual power in it I have only experienced it a few times but if it is the real thing it leaves you in a state of awe
but the gift is not for just speaking there has to be a reason for it you cannot just start speaking and suddenly you operate in the gift and it does mean languages not random gibberish but most often it is not a single language spoken but several of them, yet people just think if you speak in hebrew your operating in the gift