A euphemism for committing suicide. Originates from the podcast "The Dick Show", because Greenlandreportedly has the world's highest suicide rate. Can also be phrased as "buying a ticket to Greenland".
"I saw a video online of my fiance sucking cocaine off of a guy's dick at a party, and I'm thinking of going to Greenland."
Used to describe someone who is having an unusual amount of drama and bad luck all at the same time. (I encountered this expression on YouTube, actual origin unknown)
The act of going all crazy, losing all sense of self and acting like a complete fool in an attempt to show off. The impact is usually quite the opposite.