When one motrist performs a manouver on another forcefully to gain an advantage. getting past a car that is driving in the fast lane by undertaking in the slow lane would be motorape.
Drivers of BMW 3 series, X5's and Porsches are motoraped as they think they are so awesome but infact have small c0cks.
That BMw got totally motoraped by that audi. That will dent his road rep.