it is when you eat a womans ass while she is on her period. after you are done, the blood stains are on your nose.
That horny bitch gave me such a nasty rudolf last night, that I could blow blood bubbles out my nose.
by the helper May 23, 2007
The act of upper-cutting your partner while receiving oral sex causing their jaw to close and bit down onto the tip your penis. This in turn causes your penis to prolifically bleed around the tip giving the the appearance of Rudolph's nose.
A regular blowjob just wasn't doing it for me last night, so I got rudolfed now I need stitches.
by Minho Lee August 08, 2014