Top Definition
The opposite of SBD (Silent But Deadly)

SBNQD (Silent But Not Quite Deadly)

A samll fart that cannot be heard and doesn't have a strong smell but does have a small stench that lasts for a coupple seconds
A: Woah, i just got a wiff of something

B: haha i just SBNQD'd
by jwood324 August 30, 2008
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