Trivia: jack?

n 1: a small worthless amount; "you don't know jack" [syn: {diddly-squat}, {diddlysquat}, {diddly-shit}, {diddlyshit}, {diddly}, {diddley}, {squat}, {shit}]
2: a man who serves as a sailor [syn: {mariner}, {seaman}, {tar}, {Jack-tar}, {old salt}, {seafarer}, {gob}, {sea dog}] 3: someone who works with their hands; someone engaged in manual labor [syn: {laborer}, {manual laborer}, {labourer}] 4: immense East Indian fruit resembling breadfruit of; its seeds are commonly roasted [syn: {jackfruit}, {jak}] 5: an electrical device consisting of a connector socket designed for the insertion of a plug 6: game equipment consisting of one of several small objects picked up while bouncing a ball in the game of jacks 7: small flag indicating a ship's nationality 8: one of four face cards in a deck bearing a picture of a young prince [syn: {knave}] 9: tool for exerting pressure or lifting 10: any of several fast-swimming predacious fishes of tropical to warm-temperate seas 11: male donkey [syn: {jackass}]