When you meet a girl at a bar and end up fingering her at the bar or rightoutside the bar in an adjacent alley. It happens so quickly, it is practically during the introduction.
Person #1 - "Hey where did Mark go?"
Person #2 - "He is in the corner giving some bitch the Mackin Handshake"
Violinist for pop-punk band Yellowcard. He gives a great onstage performance, with flipping, singing, and playing. He was never in a rock band before YC, but he was in the orchestra, and damn proud of it. He is also the Gigglemaster
Sean Mackin is a damn good violinist, and giggles when hyper. Yes, he giggles.