Your mood takes a jurrastic change from
happy to the next minute
depressed.
Kinda like alot of teenage women now a day's.
(hence how a stick shift in a
car changes every couple of seconds, well this is the same thing, but with your mood)
"Jane is in quite a stick shift
mood, one minute
depressed and the following she seems to be frolicking with excitement."
"Yeah dude, what a fuckin'
weird-o!"