i Register
In some senses, whirly is marked as informal. Watch for register when choosing this word.
adj
Visually suggestive of a swirl, whorl, or vortex.
The whirly pattern on the wallpaper.
That moves in a whirling motion.
The whirly blades on top of a helicopter.
He was studying this brolga dance which was being performed with the accompaniment of a whirly haze of dust sprayed from the rusty wrecks of car bodies strewn over the flats behind them.
noun
A snowy whirlwind in the Antarctic.