birl UK /bɜːl/US /bɝl/verb 3noun 2forms 3 verb3 •(Scotland) To spin.About nine in the morning, in a burst of wintry sun between two squalls of hail, I had my first look of Holland - a line of windmills birling in the breeze. — 1893 •To cause (a floating log) to rotate by treading on it. •To throw down a coin as one's share in a joint contribution. noun2 •A type of grace note movement that quickly switches between low-A and low-G several times, producing a low rippling sound. •(Internet) A girl of boyish appearance.Affirmation of the desirability of birls is a key element throughout this online site even when complex issues of gender and sexual positioning are being worked through. — 2007 formsbirled · birling · birls