Definition of "beat up"
beat up
verb
third-person singular simple present beats up, present participle beating up, simple past beat up, past participle beaten up or (US colloquial) beat up
(intransitive, dated) To go diligently about in order to get helpers or participants in an enterprise.
noun
plural beat ups
(UK, Australia, New Zealand) An artificially or disingenuously manufactured alarm or outcry, especially one agitated by or through the media.