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Crumling. Pronounced 'Krum-ling'.

-Noun
1) The bit behind your knee.

Upper Crumling. Pronounced 'Upp-er Krum-ling'

-Noun
1) The bit on the opposite side from your elbow.
"My Crumling is sweating like a hoor's fud"

"My Upper Crumling is itchy as fuck"
by Tam1989 August 04, 2009
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