Top Definition
1) Unit of measurement to describe stink - one pewton is equivalent to a raised eyebrow. 1 million pewtons generates a nasty taste in your mouth and 1 billion pewtons causes your eyes to water.
Cat poop has 8 billion pewtons compared to dog poop's 3 million pewtons.
Man! You must have eaten wings by the boatload last night! Your pewtons are off the charts!
by B-rizzleGadizzle October 17, 2013

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