Badminton has its own slang and a thicket of abbreviations — BWF, MS, WD, XD, the rankings, plus club-night court talk like 'birdie,' 'drift,' 'flat' and 'yours!' This decodes the official BWF event codes you'll see on a draw sheet, the casual on-court slang nobody explains to newcomers, and the shorthand that makes a busy hall sound like a foreign language at first.