1 definition by @ billnyeduhscienceguy on ig

when u take a test tube and use it to finger her then cum inside of it & put the opposite end inside of her ass & it pours inside her
when ur in the science lab & your teacher make su stay after class
& shes says to you "can u give me the bill nye?"

& ur like "woah miss that's inappropriate, but ill do it anyways" & she proceeds to hand u a test tube and says "fill it"
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