1 definition by Father Christmas is a real OG

when a guy goes down on a girl while she's on her period, and a lil blood gets on his nose, hence "rudolph the red nosed reindeer." Also known as giving someone a rudolph.
"WTF ho?!" "Sorry baby I didn't mean to give make you rudolph the red nosed reindeer!"

"She didn't tell me she was on her period, she gave me a fucking rudolph!"
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