The phrase "to kit out" means to equip or furnish something with necessary items. It can refer to providing someone or something with everything they need, such as when you say that a team has been "kitted out" for a competition, meaning they have received all the equipment and clothing needed for the event. The phrase is also used in a more general sense, where it means to prepare or supply something fully, like saying someone was "kitted out" with new clothes or furniture for their home.