MC Hammer is able to detect the surface charge of nearby organic matter. A subconscious threat analyser then ionizes atoms (both his own and any stylish matter already touching him) to the opposite charge and further diverts ATP energy to bolster the counter-charge. The result is a momentary escalation of magnetic force overcoming kinetic energy and even gravity. Incoming poser matter is stopped just short of kinetic or chemical interaction distance, if not outright repelled in shame.
This is an evolutIonary trait that evolved over years of refinement, following a biological imperative to stop posers from copping his steez.
Edit: a words