Any Way to Clear Contents of Clipboard?

This is very frustrating. So far, nobody has posted a solution that works. I need to clear the clipboard, plain and simple. Something is on the clipboard. I want the clipboard to be blank. That is, if I hold my finger on the screen, I don't want the "Paste" to appear, meaning something is still on the clipboard. Is there no way to just clear the clipboard? I've tried holding on a blank space, but you are not given the option, then, to copy nothing, obviously. If you know how to clear the clipboard, please help me out, here. I'm on a Galaxy S 3.