Someone that is commonly known as Hillary. Hillroy is the male counterpart for hillary. It also can be a nickname for somone named Hillary. And be used in the phrase: "Hillroy, my boy!"
"Hey what are you doing this weekend?"
"Going to party with Hillroy!"
"Who's Hillroy?!"
"Hillary, you idiot!"
"Going to party with Hillroy!"
"Who's Hillroy?!"
"Hillary, you idiot!"
by braceface:) February 2, 2009