Definition of kitties:
(n) :
(informal) A young cat; a kitten.
(n) :
(informal) (by extension) An adult cat; also (often childish), sometimes in the form Kitty: a pet name for a cat of any age.
(n) :
(euphemistic, slang) Synonym of pussy (“vulva and/or vagina”).
(n) :
(bowls) Synonym of jack (“a small, typically white, ball used as the target ball in bowls”).
(n) :
(card games, especially poker, slang)
(n) :
A pool of money to which card players contribute a portion of their winnings, which is used for paying shared expenses such as the cost of the premises or refreshments; (by extension) any pool of money to which people contribute for shared expenses or other joint purposes; also, any fund of liquid assets set aside for future use.