Slip angle is a term in car handling. When a car is moving, its wheels are traveling in a certain direction. The slip angle means the angle between the earlier mentioned wheels traveling direction and the direction they are pointing. The term is usually used in motorsports like drifting.
Person 1 :How can you tell the slip angle of a car?
Person 2: Well, there are different devices you can use to measure the slip angle.
Person 1: Actually what the hell does "slip angle" mean?
Person 2: I tried my best to describe it so just read the definition. :)