chad = (US) some evil sort of obfuscating ballot thingy used to confuse the results in an election, thereby allowing the governor of the offending state to keep playing now-you-see-it-now-you-don't with the votes until the duly appointed-by-another-relative's beaurocrats can step in and hand the top office of the nation over to yet another relative while the general populace stands by wondering what the fuck just happened

chad = (Canada) a term denoting a thing or state of affairs which is really supremely excellently cool and choice...
"Did you see Steve's new bike? With the black suede banana seat, extra high sissy bar, butterfly handlebars and really small front tire? It's soooooooo chad, man!"