Where you bend over and shake your groove thing! I agree the word "twerking" is completely stupid and other words. Whenever I hear these words come from kids at my school it makes me feel ashamed to be a teen.
Twerking is a type of dancing in which the dancer, usually a woman, shakes her hips in an up-and-down bouncing motion, causing the dancer's buttocks to shake, "wobble" and "jiggle". According to the Oxford Dictionary Online, to twerk is "to dance to popular music in a sexually provocative manner involving thrusting hip movements and a low, squatting stance"