rmac 

silly little boy who likes to blow camel/goat/echidna

damn rmac wot the fook r yoo doing

rmac by stevo milo aka stevan milosevich aka elastic man November 4, 2003

R-Mac 

being a rich faggot that likes to play with boys with long sticks and balls

Person 1: "Damn, that R-Mac is one real douchebag."
Person 2: "Hey, it's his world; we're just living in it."

R-Mac by Gucci mayne May 10, 2010