No I am not dumping the clutch, and I've been driving manual for nearly 20 years.
What I am referring to does not involve the clutch. Foot down a touch too much whilst accelerating in 2nd or 3rd gear, it snaps sideways uncontrollably. What I would expect to happen, even with sh*tty tyres, is for the car to continue in a straight line whilst wheelspinning. It doesn't.
This is with traction control on OR off.