As nouns the difference between drifting and slippage
is that
drifting is (motorsports) a driving technique where the driver intentionally oversteers, causing loss of traction in the rear wheels, while maintaining control from entry to exit of a corner while
slippage is the act of slipping, especially from a secure location.
As an adjective drifting
is moving aimlessly or at the mercy of external forces.
As a verb drifting
is .