A person with extremely small fingers or hands which are ideal for sowing clothes and knitwear. Thier hands are so small that things as little as a grain of sugar can get in the way of their intricate task. Therefore they flick them away. Hence the name 'Sugar Flicker'.
"By gosh! Look at those tiny yellow hands on Dave!"
"I know, I'm starting to wonder if he comes from a Sugar Flicker family!"