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When your body convulses after an orgasm.
Benji was shaking extra hard after he percolated.

Come on baby, I'll make you percolate
by wildman February 25, 2005
The convulsion, or shivers, following an orgasm
Benji pumps pussy all night till he makes the girls percolate.
by Ajit the Crunk-master February 23, 2005