the short form of Rupert.
The name of a 3rd nipple like groth
normally on the neck.
when one see's such a mole type thing they are to yell "Rupie!" as loud as possible, this is a fun game to play with friends in places like school, the mall, or work.
"RUPIE!!!"
"Holy shit dude that one has a fucking hair on it!"
"Dude that's on nasty Rupie!"
