Santorum isn't the only candidate who's had somebody try to use his name as a word for something gross (though probably the most successful example of it happening)... in a recent Cracked article:
"He wanted to be President Trump, even though "trump," as a word, sounds like it should be slang for that sometimes flabby part of the body where the under-ass rubs up against the back of the leg. Like, "We were making out behind the shed at the mini-golf place and I was grabbin' her butt, but I had to quit because this chick had mad trump- sweat. It was gross." He said he wanted to run for president."
http://www.cracked.com/blog/i-cant-tell-if-world-being-serious-anymore/