Agent noun of penetrate; one who penetrates.(noun)
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Use "penetrator" in a sentence
"Question: is it wrong to have penetrative anal sex of the penetrator is a woman? i.e., ‘pegging.’"
"The following summer I fell in with a Miner by the Name of Jack Freeman. he was well known as a penetrator, He told us that up at point Barrow was all kind of shot gold. this aroused our curiosity again and I thought of my Squaw down at St Michals."
"The part of the weapon that is made of DU is called a penetrator: this is a long dart weighing more than four kilograms in the largest examples: it is neither a tip nor a coating."