whirlpooling

noun3

1. •
   The action of liquid swirling around, forming a whirlpool.

   • It makes no sense to say that the whirlpool is “here” and the ocean “there.” Whirlpooling is a feature of the ocean. — 2020
2. •
   A method of separating the trub from the wort, involving centrifugal force.
3. •
   The assault, undressing and groping of a woman by men in an aquatic setting.

   • "In dozens of separate 'whirlpooling' incidents, groups of teenage boys surrounded a girl in the water, tore off her swimsuit top and then grabbed her breasts." — 2007