Southpaw, kidal, clicky, mancino, spuddy-handed, gitcho, caggy, chapool, port-sider... There are a lot of terms for left-handers all over the world, and mixed feelings about the connotations of the words, as some are derogatory, while others are celebratory. On this day, however, left-handers the world over can celebrate. It's International Lefties Day!