In Australia "Helli's" is the act of swinging "nuts" (donuts) in a rear-wheel drive car. Presumably from the word Hellicopter, how the car spins around on an axis.
Oi last night we saw this commodore swinging helli's right out the front of the club!
In a Lowrider or car with Hydraulics, you bring the car up to full height then drop one of the rear rams down on one side making the car pick the opposite front wheel right up in the air as you drive. Also known as a "ganster lean"
Today i saw this caddy 3wheeling round this corner, looked off-tap