Knackered means tired, shot, dead, otherwise not in good shape. You can be knackered (really tired) and parts can similarly tired or worn-out.
(from Cambridge Advanced Learner's Dictionary) knacker verb [T] UK SLANG 1 to break something: Careful or you'll knacker the gears!
2 to make someone very tired: Don't go too fast or you'll knacker yourself in the first hour.
knackered adjective UK SLANG 1 broken or too old to use: My bike's knackered.
2 [after verb] very tired: I'm too knackered to go out this evening.
David Bilenkey Ottawa, Ontario, Canada
> -----Original Message-----
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> Subject: [CR]Fag Paper clearance
> Look forward to seeing you over here, Mick. Thanks for the
> excellent explanation. Perhaps you can also tell us about
> "Knackered" parts, too! Any other of these type of things we
> should know about?
> Tom Sanders
> Lansing, Mi