The act of randomly tossing glitter on an unsuspecting or unaware person. Works best if the victim is damp from sweat, poolwater, etc. as the glitter tends to stick for days this way. Named for the pop star Ke$ha, whose affinity for glitter is spelled out in nearly every song she sings.
When Rani got off the waterslide, I was waiting with a tube of blue glitter and Ke$habombed her big time. She'll be sparkling blue for a week!!