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1. Exhausted
2. Sexually spent
3. Reprimanded
4. Broken / malfunctional
1. I was knackered when I got in from work.
2. After my seventh ejaculation I was well and truly knackered.
3. The teacher caught us smoking and now we're going to get really knackered.
4. I tried to fix my dad's PC but now it's more knackered than ever.
by Dan Fox June 12, 2003
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May 14 Word of the Day
Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy
Person A: Man, that nutcase Martin Bryant guy shot 35 people in Tasmania!

Person B: No, he wasn't a nutcase, that was just a psyop so the government could have an excuse to ban guns.
by Mystikan April 11, 2006
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2
Exhausted. now can be used entirely freely of any sexual connection.
I'm absolutley knackered, i've been working all day.
by zimo August 15, 2004
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4
spent, near death.
Origin from 'knacker's yard' where one took old horses to become pots of glue.
On my feet all day and I'm knackered.
by Quas1 September 11, 2008
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6
to run out of energy during an endurance sporting event; to "bonk".
The rider forgot to eat before the last climb of the day and he was completely knackered half way up.
by Entheo June 28, 2009
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