Can anybody think of an alternate description that has something to do with tropes? I know "scrub the floor / your hands / some other surface" and "scrub a launch", neither of which are particularly tropeworthy.
If there is a tropeworthy definition other than the one given in the article, we should move this page to "Scrub (gaming)" and make a disambiguation page pointing at all the definitions. If there isn't, then we can leave this page alone.