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The Grundle is the narrow area between a man's ball-sack and his anus.

The "Grundle Days" are those few days which fall between the end of Christmas Day and the morning of New Year's Eve.
What are you doing with the Grundle Days this year?

Nothing.

Me too.
by The Long Kiss Goodmorning February 08, 2005
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Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
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