To hit the balls, in a game of billiards, with a cue; To put a bunch of people or things in one place.; To point out something, in doing so, causing a stain, a hole, some damage.
peg (a short, thick piece of wood, metal, or other material); dowel (a longer piece of wood, plastic, or other material); stopper, plug, wad (small bundle of material made to cover, stop, or fill a hole); heel (of a shoe); traffic jam