A carpet that has gathered so much dust that it has fossilised and become crust.
That carpet is such a crusty carpet! Clean it!
by BeefyToeFandom November 17, 2018
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You ejaculate in a girls pubic hair and let it dry out.

She doesnt wash it for a week.
"hey john, hows your wifes pubes?"
"Last night I gave her a crusty carpet"

"YEAH BOOOOIIIIIII"
by Mr. Nips February 2, 2012
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When you jack off onto your carpet
Hey i use crusty carpet what about you “
by Crusty011 March 17, 2019
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