Technicly it IS drifting because the car has to ACTIVELY hold the angle to stay unstable (what drifting physicly is). A slide is a more passively way of getting around a corner or just sliding into a parking space etc.
And getting around a roundabout sideways also IS drifting, even if its just a big circle.
I think too many did watch TokioDrift or videos of the D1 team maybe. That isnt the whole drift thing ladies...