Squash is a highly-sweetened (and often fruit-based) concentrate, which is mixed with a liquid, most commonly water, before drinking. It is also the name of the resulting drink.They are especially popular amongst toddlers and young children. Typically, squash is created by mixing one part concentrate with four or five parts water (depending on concentration and personal taste) directly into a glass or mug or into a jug. The most common flavours are orange, apple and blackcurrant, lemon, peppermint, mixed fruit, summer fruits, and lemon-lime. Other flavours include peach, strawberry, and kiwi fruit.