Possible Definitions:
1. Twirl (v. t.) To move or turn round rapidly; to whirl round; to move and turn rapidly with the fingers.
2. Twirl (v. i.) To revolve with velocity; to be whirled round rapidly.
3. Twirl (n.) The act of twirling; a rapid circular motion; a whirl or whirling; quick rotation.
4. Twirl (n.) A twist; a convolution.