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To use the thumb on a woman's clit long enough to expose the hard clit from beneath it's sheath.
"Dude, how did it go last night? Did you get her off?"
"Yeah, I had to thumb the urchin for a while, but eventually that little bastard came out to play"
by BRamos May 03, 2007

Words related to thumb the urchin

clit dirty finger foreplay shocker