"Olly olly oxen free" is a catchphrase or truce term used in children's games such as hide and seek, capture the flag, and kick the can to indicate that players who are hiding can come out into the open without losing the game; that the position of the sides in a game has changed (as in which side is on the field or which side is at bat or "up" in baseball or kickball); or, alternatively, that the game is entirely over. A number of variations exist. "Ollyoxalls" is one such variant, said to be used in Portsmouth, England. Another variant is "Ollie Ollie in come free."