'who's cops who's thieves', a children's game of 'counting-out'/ 'it'
Definitions (粵典–words.hk)
動詞
喺幾樣野入面以好唔正式嘅方式求其揀一個 to choose or count out randomly; originating from "who's the cop", a children's game of counting out like "eeny, meeny, miny, moe"
Eeny, meeny, miny, moe, catch a tiger by his toe, if he hollers let him go, eeny, meeny, miny, moe. My mother told me to catch the very best one and you are not it.