What is Shaft Seals?
1.
A marine mammal that lives in the engine room of every US submarine. NUBs are sent to feed them for the pleasure of more senior sailors.
"Hey NUB, go feed the shaft seals."
"But the shaft seals are actually a series of interlocks and safety mechanisms that ensure the integrity surrounding the ships main propulsion shaft, and not nautical mammals; but I'll go feed em if you want."
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1.
A variation of Scrabble played by using Urban Dictionary as the rule dictionary instead of (or as well as) another more academically res..