When you are banging your girlfriend and you shove a pickle up her
ass for added pleasure. After you are done, she eats the
pickle. (Because the
pickle is green, it is like a Martian penis, like the Great Gazoo of Flinstones fame might have.)
Katie said that she had mixed emotions about the Great Gazoo. The pickle up the
ass was actually thrilling, but the
pickle tasted like shit afterwards.