When you do something useful for the world. It can be anything big or small, long-term or a once off. Something that you wish more people just did, anything that you've wanted to do for ages but haven't got round to, or just something nice for someone.
"I just spent an hour helping out my friends housemate by drying and putting way all their dishes." "For no reason? you just did a Useful Act"

I'm going to tell people how important and wonderful they are, to their faces while they're there. Rather than think it after they leave.

"Just got my bike fixed so that I can replace one unnecessary drive per week with a bike ride instead" "I've been meaning to do that! It's such a Useful act"

"I got to netball early tonight, so instead of just sitting by myself for 30 minutes like usual, I scored a game with no subs so that the players on court wouldn't have to. It kept me occupied and was a Useful Act"

"I want to spend more time playing with my dog, it's a useful act"
by Cotties November 28, 2012
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the biggest peice of totaletarian bullshit ever (Also see George W Bush)
Dude, my friend got taken away by the government last night...
by Adrien June 2, 2005
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Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act.

The Act passed in 2001 that severly curtails Americans' civil rights. Also see Patriot Act.
John Ashcroft is now one step nearer towards an Orwellian society with the US PATRIOT ACT.
by mailer_diablo October 22, 2004
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Document that supposedly protected unicorns and ginger. Probably created in 1996. Is actually total bullshit.
Gingers are hunted for their magic powers which puts them on the US Endangered Species Act of 1996. Too bad it doesn't exist.
by MuffinMuffinMuffinMuffin March 6, 2009
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