tick-tack-toe: Meaning and Definition of

tick-tack-toe

1. a simple game in which one player marks down only X's and another only O's, each alternating in filling in any of the nine compartments of a figure formed by two vertical lines crossed by two horizontal lines, the winner being the first to fill in three marks in any horizontal, vertical, or diagonal row.
2. a children's game consisting of trying, with the eyes shut, to bring a pencil down upon one of a set of circled numbers, as on a slate, the number touched being counted as a score.