skim v OED ~ v 8 for sense 1; cp EDD skime v1 4 'to leer, ogle' for sense 2.
1 In the game of ducks and drakes, to throw a flat stone so that it skitters lightly over the surface of the water; SKIP.
P 148-63 [He] can skim [a rock] 16 times. 1964 Can Journ Ling x, 43 Skimming—shying flat stones over the water.
2 To pursue a woman or courting couple furtively; to peep at; DOG v (P 48--60).
