It means camera hacks and modifying tricks through camera settings.
I have a Canon 200D, and my camera has a creative auto mode. I tried all modes with my 10-18mm lens.
During the class, we also went through various white balance settings.
Lens whacking, also called free lensing, is a method of shooting with the lens detached from the camera body. It allows light leaks, creates a tilt-shift focus effect, and adds a dreamlike, vintage quality to our footage
And a final trick I learnt was reverse holding a lens to have some brilliant macro shots.
This session gave me a clear understanding of some tricks and techniques on basic camera settings and lens.
Subject and Sequence 