What is the meaning of the expression "The G's on that"?
That was said by a girl after riding a roller coaster.
The thrill from roller coasters is derived from the g forces encountered, both positive and negative. She is exclaiming that the g forces were strong on the ride.
Up, down and all around. A steel coaster may try to wow you with sheer speed and inversions, while a traditional wooden coaster often includes "camel back" hills that make you fly out of your seat.