When a girl masturbates so ferociously her pussy juice is whipped up into a foamy lather. The term can be applied to a solo wank session or a group of masturbating girls that have gathered for the occasion.
Hey Sue, what you got planned this weekend?
Well my boyfriend is working away this weekend so I've planned a foam party wank marathon. I'm going to flick my bean so fucking hard my juice is going to soak the carpet through. Care to join in?
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