When a boy name Sir Danny Kirby the III proceeds to make a claw with his hands and progressively and without mercy stab the earlobes of other humans in the surrounding area.
From the root word scorpion. It is a metaphor for hooking up. Picture the pincers and then scorpion tail impailing (much like a penis) into the "victim" or sexual partner.
To have beat badly. Almost synonymous with pwn. This word's origin lies with David Winton who named it after the Mortal Kombat character Scorpion. One of the Scorpion AIs in 2v2 arcade mode was overpowered leading to the creation of this word.
The word can be applied to areas outside of video games as well (including things like school and work).