twirler

transitive verb, intransitive verb

1. to rotate rapidly; spin
2. to turn rapidly in a circle; whirl around
3. to twist or coil: to twirl one's mustache
4. ☆ Baseball to pitch

noun

1. a twirling or being twirled
2. something twirled; specif.,
   1. a twist, coil, etc.
   2. a twisting line; flourish