A name most commonly referring to an Irish beer drinker or party goer. This person is often the center of attention at a party due to their inclined ability to endlessly down alcohol.
"Wow look at that Irish dude over there double fisting! He's a regular Kip O' Riley!"

"Is that a leprechaun chugging that vodka?! Oh wait, that's Kip O' Riley!"
by the gilgamesh December 10, 2008

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