bob: did you see john last night?  fred: no, he was frothing the bearded clam with this really hot chick
when a man has sex with a woman and ejaculates on the outside of her vagina
"bob: did you see john last night?  fred: no, he was frothing the bearded clam with this really hot chick" What is the definition of "frothing the bearded clam"?