Udeski Share definition Flag Someone who, because of his own incompetence, is always left behind.also incredibly stupidprime example Jurassic park 3 Guy1: wheres bob?Guy2: forget him man hes a udeski just run! Udeski by udeski July 25, 2011 0 0 Get merch Get the Udeski mug. Buy Now — $32.95 See more merch