'beat-up' definitions:

Definition of 'beat-up'

From: WordNet
adjective
Damaged by blows or hard usage; "a battered old car"; "the beaten-up old Ford" [syn: battered, beat-up, beaten-up]

Definition of 'beat-up'

From: GCIDE
  • beat-up \beat-up\ adj. same as beaten-up.
  • Syn: battered, beaten-up, bedraggled, broken-down, dilapidated, ramshackle, tumble-down, unsound. [WordNet 1.5]