PERSON@1 , The Cassell Dictionary of Slang , NUMBER@1 , page NUMBER@2 The game is also known in LOCATION@1 as soggy Sao after the SAO brand of biscuits popular there .

PERSON@1 , The Cassell Dictionary of Slang , NUMBER@1 , page NUMBER@2 The term is thought to have originated in LOCATION@1 sometime in the NUMBER@3 .
