loony dooker noun1 •(Scotland) Someone who participates in the annual Loony Dook event, in which people dive into the freezing waters of the Firth of Forth on New Year's Day.Of course, those soft southern swims aren't for everyone. So how about taking the plunge in the Firth of Forth as a "loony dooker" for fundraising fun in a more northern setting? — 2013 formsloony dookers
