One from Antarctica, one born on Antarctica, or anyone in reference with a word starting with "A". For example, "asshole", "atheist", "antagonist", "anti-pong" and "adventurer". True Antarcticans are rare, in that they are actually born on Antarctica, and it's probably safe to say that they don't exist except in silly comics. However, Antarcticans that are of one or more of the above traits are much more common than any person born on Antarctica.
"Silly Antarctican, no shit for you."
"Have you read that new Antarctica! comic?"
"You're such a fucking Antarctican..."
Billy got caught drinking, his mom was so mad that she gave him an Antarctican Nosering.
By Mariann
Antarctican Wing Flap
The act of placing your vagina in ice water and jumping up and down, flapping your beef curtains like a penguin flaps its flippers, while making penguin noises.
"My mom went out to partyone night, so I wanted to enlighten my friends by performing an Antarctican Wing Flap."
By Jesse
Antarctican Swamp Launcher
The act of first putting on a winter jacket, assless chaps, and a bandana place firmly around the penis (on a male). First you have to meet a rabid penguin named Larry, fuck him until his asshole falls off and your nut sack turns into slippery mush, hense causing your cum to blast off on Larry's left ass cheek, hence called the swamp launcher.