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Quite the opposite of the popular term 'Silent but Deadly.'

Loud but Harmless is a fart that is EXTREMELY loud, but will not do any damage to your nose.
Dan: Hey guys.

Jim: Hi, *farts loudly*

Andy: Oh man, take cover!

Dan: No, Andy it's okay! There's no smell! It's a Loud but Harmless!

Andy: Oh yeah! Awesome!
by EpicWinzorz December 27, 2008
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