I'm in yo girl and now she feeling Polish like pierogies
Very clever line.
His “pole” is in her so now she’s feeling “Polish” which is of course a nationality. Pierogies, basically a pocket of dough filled with a variety of things (usually potatoes, onions, meat, cheese), is a perhaps the most famous Polish dish. So, another meaning, just like a pierogi, her “pocket” is stuffed.
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