A question whose answer one fears to seek.
Etymology: Rick Santorum used to have a mustache. It would be funny to see a picture of this. But there's no way you're searching for "Santorum's Mustache" on the Internet.
"Um, are you sure that hooker was really a woman?"
"Santorum's Mustache, man."
The act of felching Santorum from your lovers anus, then drawing a Mustache with the felching straw dripings you have not consumed.
Mitt gave Rick a Santorum's mustache with his crazy straw after reached the end of his felching session.