The in & out or up & down motion of a woman masturbating with a dildo or sex toy. A derogatory expression used to describe masturbation done in a mechanical,fake or lacking in genuine enthusiasm.
That porn wasn't any good,all it was,was a bunch of chicks churnin' pussy.

I left that website fast when I saw all it was,was a bunch of models churnin' pussy for tips.
by CamZombie December 15, 2010
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