slapstick Syllabification: (slap·stick)Pronunciation: /ˈslapˌstik/Translate slapstick | into Italian | into Spanish Definition of slapstick noun comedy based on deliberately clumsy actions and humorously embarrassing events: [as modifier]:slapstick humor a device consisting of two flexible pieces of wood joined together at one end, used by clowns and in pantomime to produce a loud slapping noise. slapstick in other Oxford dictionaries Definition of slapstick in the British & World English dictionary