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Verb: to kindly blow the minds of everyone around you just by being yourself. However, you must be at least 50% Irish in order for this to be effective.
"Dude, I can't help it. I was eating my sandwich when she just langined by me. She's officially cool."

"I didn't think much of Kelly until I saw her langin down the hallway the other day. She's so awesome!"
by birdybirdbirdy August 19, 2011
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2
A unit of measurement named after Chris Langin. He claims the highest IQ and tries to prove god. He is always trolling the rational world.

A Langin is a single outlandish claim so crazy it is equal to 100 normal troll comments.
Man that shit is so crazy you have hit 3 Langins, it would take hundreds of kids on 4chan to equal this.
by Meatbyproducts March 22, 2017
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