swirly

/S W ER1 L IY0/
noun
  1. 1

    A school prank involving holding a person upside down over a toilet bowl, submerging their head, then flushing water.

    โ€œI gave this nerd a swirlie.โ€

adjective
  1. 1

    Having swirls; swirling.

Source: https://en.wiktionary.org/wiki/swirlie, https://en.wiktionary.org/wiki/swirly