Billio has this great definition on his page.

Understeer when you hit the wall with the front of the car.
Oversteer when you hit the wall with the back of the car.
Horsepower how fast you hit the wall.
Torque how far you take the wall with you.

I am sure that there are some other unusual, but (perhaps) true, definitions that forum members could share.

The more technical the better. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 76k+ miles) (MY2015)

Misfire = when the car catches fire and is destroyed.

J